Hemp Farm Guide

How to Start a Hemp Farm: 2018 Farm Bill, USDA Final Rule, State Grower License, THC Testing, Hot Crop Remediation, and FDA CBD Compliance (2026 Guide)

A hemp farm is one of the most compliance-intensive agricultural operations in the United States. Before planting a single seed, you need a state hemp grower license, a USDA FSA farm number, a compliant sampling and testing plan using a DEA-registered lab, EPA-compliant pesticides, and — if selling CBD extracts — an understanding of FDA's evolving position on hemp-derived cannabinoids. This guide covers the key layers in detail—with specific CFR citations, form numbers, dollar amounts, and timelines.

Updated April 13, 2026 20 min read

Not legal advice. Requirements may change — always verify with your local government authority before applying. Last verified: .

The quick answer

  • 1A state hemp grower license from your state department of agriculture is the foundational permit. Every state with an approved USDA State Plan — including CA (CDFA), TX (TDA), NY (DAM), KY (DOA), and CO (CDA) — issues its own annual license. In states without an approved plan, a USDA Plan license from AMS governs. Annual fees range from $50 to $2,000 depending on state and acreage.
  • 2Pre-harvest THC testing by a DEA-registered laboratory is mandatory within 15 days of anticipated harvest under 7 CFR §§ 990.70–990.76. A licensed agent (not the farmer) must collect samples from flowering tops. Crops testing above 0.3% but under 1.0% total THC are "hot" and must be destroyed; crops above 1.0% are marijuana and trigger DEA involvement.
  • 3A USDA FSA farm number and crop acreage report (FSA Form CCC-576) are required for all hemp producers within 30 days of planting. Reporting is free and done at your local FSA county office. Failure to report can disqualify growers from federal farm programs.
  • 4EPA pesticide compliance under FIFRA is strict: only pesticides with a registered Section 3 label specifically listing hemp as a permitted crop may be used. Very few conventional pesticides qualify; most hemp farmers rely on OMRI-listed bioinsecticides. Using an unregistered pesticide on hemp is a federal FIFRA violation.
  • 5FDA prohibits adding CBD to food or marketing it as a dietary supplement under FDCA § 301(ll) without FDA authorization. As of 2026, no such authorization exists, leaving the CBD-in-food market in regulatory limbo. Hemp grown for fiber, grain, or other non-CBD uses is not subject to this restriction.

1. How hemp regulation works: the federal-state-local structure

Hemp regulation in the United States operates across at least four independent layers, each of which must be satisfied before cultivation begins. The federal layer — administered by the USDA's Agricultural Marketing Service (AMS) under the 2018 Farm Bill and the USDA Final Rule (7 CFR Part 990) — governs the licensing framework, testing protocols, and disposal requirements for non-compliant crops. The Drug Enforcement Administration (DEA) retains jurisdiction over hemp that tests above 0.3% THC (reclassified as marijuana) and over DEA-registered laboratories used for compliance testing.

The state layer requires a separate hemp grower license from the state department of agriculture in any state that has received USDA approval for its State Hemp Production Plan. Over 40 states have approved state plans as of 2026; growers in those states obtain their license from the state, not directly from USDA. In states without an approved plan, the USDA Plan governs and AMS issues licenses directly to producers. State programs frequently impose additional requirements beyond the federal minimums, including seed certification requirements, insurance mandates, and processor licensing for entities that extract, process, or transform raw hemp.

The local layer consists of zoning approval (hemp is an agricultural use, but some counties restrict it), water rights and irrigation permits (critical in western states), local business licenses, and environmental compliance for processing facilities. A fourth regulatory layer — FDA oversight of hemp-derived CBD products — applies to any grower selling into the CBD extract market. All of these must be navigated concurrently; there is no single permit that satisfies all requirements.

2. The 2018 Farm Bill and USDA Final Rule (7 CFR Part 990): the regulatory foundation

The Agriculture Improvement Act of 2018 (Pub. L. 115-334), signed into law on December 20, 2018, fundamentally changed hemp's legal status in the United States. Before the 2018 Farm Bill, hemp was classified as a Schedule I controlled substance under the Controlled Substances Act, with no distinction between hemp and marijuana for federal enforcement purposes. The 2018 Farm Bill amended 7 U.S.C. § 1639o to define hemp as Cannabis sativa L. with a delta-9 THC concentration of not more than 0.3% on a dry weight basis, removed compliant hemp from Schedule I of the CSA, and authorized USDA to establish a regulatory framework for domestic hemp production.

USDA Final Rule requirements (7 CFR Part 990)

Effective: March 22, 2021 Administered by: USDA Agricultural Marketing Service (AMS) Reference: 7 CFR §§ 990.1–990.76

The USDA Final Rule at 7 CFR Part 990 establishes minimum requirements that all approved State Plans, Tribal Plans, and the USDA Plan must satisfy. Core requirements include: (1) maintaining accurate and current information on the land where hemp is produced, including GPS coordinates (latitude/longitude to four decimal places), legal land description (township, range, section), and total acreage; (2) a pre-harvest sampling protocol requiring DEA-registered laboratory testing within 15 days of anticipated harvest, with sample collection performed by a licensed agent (not the producer); (3) testing methodology using post-decarboxylation methods (HPLC or GC) that measure delta-9 THC and THCA and calculate total THC; (4) disposal of non-compliant plants (those exceeding 0.3% total THC) using USDA-approved destruction methods (deep burial, burning, or composting with a specified ratio of non-hemp material) with documentation; (5) recordkeeping for a minimum of 3 years covering all hemp lots planted, tested, and disposed; (6) correction of negligent violations (up to two per rolling 5-year period before license suspension); and (7) state or USDA plan reporting to AMS annually. Willful violations of hemp production regulations can result in permanent license ineligibility under 7 CFR § 990.6(d).

USDA Plan vs. State Plan: which applies to you?

State Plans: Approved by USDA AMS; state DOA issues licenses USDA Plan: Applies where no approved State or Tribal Plan exists

As of 2026, the following states operate under USDA-approved State Plans: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, and Wyoming. Check your state DOA's website for current program status, as plans can be suspended or modified. Producers in states without an approved plan — or on tribal lands with no approved Tribal Plan — must apply directly to USDA AMS for a license under the federal USDA Plan. Under the USDA Plan, USDA coordinates sampling through its Animal and Plant Health Inspection Service (APHIS) and processes licenses through AMS. The USDA Plan application is available at ams.usda.gov/hemp.

3. State hemp grower licensing: CA, TX, NY, KY, and CO

State hemp grower licenses are annual and must be renewed each growing season. Licenses are tied to specific production sites; adding or changing fields requires notifying the licensing authority before cultivation begins. Each state has distinct requirements for seed sourcing, insurance, and on-farm processing activities. Here are the requirements for five major hemp-producing states.

California: CDFA Industrial Hemp Program

Issued by: County Agricultural Commissioner (via CDFA) Annual fee: $900–$2,000+ (county-specific) Reference: Cal. Food & Agr. Code §§ 81000–81010

California's hemp program is administered at the county level through local Agricultural Commissioners (CACs) working under CDFA oversight. Registration is filed with the county CAC in the county where hemp will be grown. Growers must provide GPS coordinates of all cultivation sites, variety information for all seed or clone sources, and a cultivation plan. California requires that all hemp seed or plant material come from a licensed source; growers may not legally plant uncertified seed of unknown THC genetics. California's Department of Food and Agriculture maintains a list of approved hemp seed varieties. The CAC coordinates pre-harvest sampling through CDFA-approved laboratories. California law also regulates hemp processors separately: any entity that extracts cannabinoids from raw hemp must hold a separate CDFA hemp processor registration. For CBD products intended for sale in California, additional labeling and testing requirements under the California Department of Public Health (CDPH) may apply.

Texas: TDA Hemp Program

Issued by: Texas Department of Agriculture (TDA) Annual fee: $100 application + $8.50–$15/acre Reference: Texas Agriculture Code Chapter 122

Texas operates under an approved USDA State Plan through the Texas Department of Agriculture. Growers must apply annually online at the TDA website, providing GPS coordinates for all hemp fields, seed variety documentation, and contact information. Texas uses its own approved list of testing laboratories; growers must use only TDA-approved labs for pre-harvest compliance testing. Texas requires growers to carry liability insurance of at least $1,000,000 per occurrence during the growing season. The TDA mails sampling notifications to growers when their fields are selected for inspection; growers must cooperate with TDA inspectors for sampling. Texas also separately licenses hemp transporters and handlers; moving harvested hemp within Texas without proper documentation can result in misidentification as marijuana by law enforcement. TDA provides a Hemp Transportation Declaration form that growers should include with all hemp shipments.

New York: DAM Hemp Program

Issued by: NY Department of Agriculture & Markets (DAM) License period: 3 years Annual fee: $50 application fee

New York's Department of Agriculture and Markets issues three-year hemp grower licenses rather than annual licenses, reducing administrative burden on growers. However, growers must submit an annual site update each year confirming field locations and acreage planted. New York has a robust hemp processing sector; the state separately licenses hemp processors and retailers. NY DAM coordinates pre-harvest sampling and uses USDA-compliant testing methods. New York has been notably progressive on CBD-in-food regulations at the state level — the NYDOH has issued guidance allowing hemp-derived CBD in food products produced and sold in New York, though this conflicts with FDA's federal position and creates compliance uncertainty for interstate sales. Growers supplying the New York CBD market should consult with a food regulatory attorney to understand the current enforcement landscape.

Kentucky: KDA Industrial Hemp Program

Issued by: Kentucky Department of Agriculture (KDA) Annual fee: $50–$500 (acreage-based) Reference: KRS Chapter 260.850–260.869

Kentucky was one of the first states to establish a hemp pilot program under the 2014 Farm Bill, and its program has been among the most grower-supportive in the country. The KDA issues annual grower licenses with fees based on acreage ($50 for 0–5 acres, scaling up to $500 for over 50 acres). Kentucky requires growers to use certified hemp seed from the Kentucky Seed Improvement Association or equivalent certified source; using uncertified seed is a license violation. KDA conducts pre-harvest sampling directly — KDA inspectors collect samples and send them to KDA-approved DEA-registered labs. Kentucky's crop insurance programs for hemp are among the most developed in the country; USDA's Risk Management Agency (RMA) offers federally backed hemp Whole Farm Revenue Protection (WFRP) and Actual Production History (APH) policies in Kentucky, substantially reducing growers' financial exposure to hot-crop losses.

Colorado: CDA Industrial Hemp Regulatory Program

Issued by: Colorado Department of Agriculture (CDA) Annual fee: Varies by acreage Reference: C.R.S. §§ 35-61-101 et seq.

Colorado has operated a hemp program since 2013 — one of the longest-running in the nation — and its regulatory infrastructure is among the most mature. CDA's Industrial Hemp Regulatory Program registers growers annually. Colorado requires that hemp be grown from certified seed registered with the Colorado Department of Agriculture's Seed Program; seed varieties must have documented THC testing data and be listed in Colorado's approved variety database. Colorado also separately registers hemp handlers and processors. The Colorado Department of Public Health and Environment (CDPHE) regulates hemp products intended for human consumption, including CBD products. Colorado's water law is prior appropriation; growers must hold valid water rights for irrigation, and hemp irrigation uses must be included in any augmentation plan or substitute water supply plan if diverting from a decreed source.

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4. THC testing requirements: DEA-registered labs, sampling protocols, and hot crop remediation

Pre-harvest THC testing is the single most operationally critical compliance step for hemp farmers. A crop that tests above 0.3% total THC cannot legally be sold as hemp; if it tests above 1.0%, it is classified as marijuana and triggers DEA involvement with potential criminal consequences. Understanding the sampling protocol, testing methodology, and remediation options is essential for every hemp grower.

Sampling protocol: who collects samples and when

Timing: Within 15 days of anticipated harvest Collector: Licensed federal or state agent (not the producer) Reference: 7 CFR §§ 990.70–990.72

Under 7 CFR § 990.70, growers must notify their licensing authority of anticipated harvest at least 15 days before the planned harvest date. The licensing authority then dispatches a licensed sampling agent to collect samples from the flowering tops of cannabis plants — the highest-THC portion of the plant. Under the USDA Final Rule, one sample is required for every lot (a contiguous area of hemp in a single field managed as a unit). For fields 10 acres or smaller, one sample is required; for larger fields, additional samples may be required at the rate of one per 10 acres, depending on the state plan. Samples consist of approximately one cup of plant material (stems, leaves, and flower), collected from the top 5–8 inches of flowering tops from multiple plants across the field. Samples must be submitted to a DEA-registered testing laboratory within 15 days of collection. Growers are generally responsible for the cost of testing ($150–$500 per sample). Farmers cannot harvest their crop until they receive a compliant test result; harvesting before results are received is a regulatory violation.

Testing methodology: total THC calculation

Method: Post-decarboxylation (HPLC or GC/MS) Formula: Total THC = delta-9 THC + (0.877 × THCA) Reference: 7 CFR § 990.72

DEA-registered laboratories analyze hemp samples using post-decarboxylation methods that convert THCA (tetrahydrocannabinolic acid, the non-psychoactive precursor to THC that predominates in living plant material) to delta-9 THC through heat. The USDA Final Rule defines total THC as: delta-9 THC + (0.877 × THCA), where 0.877 is the molecular weight conversion factor. This formula reflects that when THCA is heated (decarboxylated), it converts to delta-9 THC at approximately 87.7% efficiency. A plant with 0.1% delta-9 THC and 0.3% THCA would have a total THC of 0.1 + (0.877 × 0.3) = 0.363%, which would exceed the 0.3% threshold even though the delta-9 THC alone is within limits. Growers should use the total THC formula when evaluating seed variety performance data. Labs accredited by the DEA under the Controlled Substances Act must hold a DEA Schedule I researcher registration to handle cannabis samples; the list of DEA-registered labs is available from USDA AMS. USDA maintains a current list of laboratories authorized under its program at ams.usda.gov/hemp.

Hot crop remediation: 0.3%–1.0% vs. above 1.0% THC

0.3%–1.0% THC: Negligent non-compliance, remediation required Above 1.0% THC: Marijuana classification, DEA involvement Reference: 7 CFR § 990.6

A crop testing above 0.3% but at or below 1.0% total THC is classified as a negligent violation under 7 CFR § 990.6(b). The grower is not subject to criminal liability for the first negligent violation, but is required to: (1) dispose of the non-compliant crop using a USDA-approved method (on-site deep burial, incorporation into the soil, incineration, or composting with at least five parts non-hemp material); (2) document the disposal with photographs, GPS coordinates, and a signed declaration submitted to the licensing authority; and (3) complete a corrective action plan for future seasons. A producer who accumulates more than one negligent violation in a five-year period may have their license suspended. A crop testing above 1.0% total THC is treated as marijuana under the CSA. The grower must report to the DEA and the licensing authority within 24–48 hours (timelines vary by state plan). The DEA must oversee destruction of the crop. The grower may face state or federal criminal investigation for marijuana cultivation, though prosecutorial discretion has historically been applied in cases where the grower demonstrates good-faith compliance efforts. Crop insurance under USDA RMA may cover hot-crop losses if the grower holds a qualifying WFRP or specialty crop policy; check with your crop insurance agent before planting.

5. USDA FSA farm number, crop reporting, and organic certification

Beyond the hemp-specific licensing framework, hemp producers must comply with USDA's general farm program registration requirements and, if marketing hemp as organic, obtain USDA National Organic Program (NOP) certification. Both obligations create administrative burden but also open access to federal programs and premium markets.

USDA FSA farm number and acreage reporting

Form: FSA Form CCC-576 (Notice of Loss) / FSA Form 578 (Report of Acreage) Deadline: Within 30 days of planting or by county reporting deadline Where: Local USDA FSA County Office

Every hemp producer must register with the USDA Farm Service Agency (FSA) and obtain a farm number for each farm where hemp is grown. A farm number is the FSA's administrative identifier for a farming operation; it is required to participate in virtually all federal farm programs and to receive USDA hemp program services. Growers who do not already have an FSA farm number (e.g., first-time farmers) must visit their local FSA county office to establish one. After planting, producers must report hemp acreage using FSA Form 578 (Report of Acreage) within 30 days of planting or by the county's acreage reporting deadline. Failure to report hemp acreage to FSA can disqualify the producer from USDA hemp program services and may affect eligibility for other federal farm programs (crop insurance, conservation programs, disaster assistance). The acreage report must match the field information submitted to the state hemp licensing authority; discrepancies between FSA acreage records and state hemp license records can trigger a compliance review.

USDA National Organic Program (NOP) certification for hemp

Administered by: USDA Agricultural Marketing Service — NOP Reference: 7 CFR Part 205 Annual cost: $800–$2,000+ (certifier-dependent)

Since hemp became a legal agricultural commodity under the 2018 Farm Bill, hemp farms are eligible for USDA NOP organic certification under the same standards that apply to all other agricultural crops (7 CFR Part 205). To market hemp as "USDA Certified Organic," a grower must: (1) select a USDA-accredited certifying agent (ACA) from the USDA's list of accredited certifiers; (2) complete a 3-year transition period during which all fields used for organic hemp production must be managed without prohibited substances (synthetic fertilizers, prohibited pesticides); (3) develop an Organic System Plan (OSP) documenting all inputs, practices, and pest management approaches; (4) pass an annual inspection by the certifying agent; and (5) maintain records of all inputs and practices. Certified organic hemp commands a significant price premium in the CBD extract market — typically 30%–60% above conventional hemp prices. The primary pest management challenge for certified organic hemp growers is the limited number of OMRI-listed products effective against hemp's primary pests (hemp borers, spider mites, fungal diseases such as powdery mildew and botrytis). Annual certification fees from USDA-accredited certifiers range from $800 to $2,000 for small farms; larger operations may pay more. USDA's National Organic Cost-Share Program provides reimbursement of up to $750 per year for certification costs.

6. EPA pesticide compliance under FIFRA: what can legally be used on hemp

Pesticide use on hemp is among the most frequently misunderstood compliance areas for new hemp growers. The fundamental rule under FIFRA is simple but far-reaching: a pesticide may only be applied to a crop if that crop is listed on the pesticide product's EPA-registered label. Because hemp was federally illegal before 2018, no conventional pesticides were labeled for hemp use for decades, leaving growers with minimal legal options and widespread illegal use of unlabeled pesticides — a significant risk for the hemp food and extract supply chain.

FIFRA Section 3 registration: the federal standard

Reference: 7 U.S.C. § 136 et seq. (FIFRA) EPA database: Pesticide Product and Label System (PPLS)

A pesticide with a FIFRA Section 3 registration listing hemp as a use site may legally be applied to hemp throughout the United States (subject to the pesticide label directions). EPA's Pesticide Product and Label System (PPLS) can be searched to confirm whether a specific product has an approved hemp use pattern. As of 2026, the number of Section 3-registered products for hemp has grown substantially from near-zero in 2019, with fungicides, insecticides, and herbicides now available for legal use. Growers should confirm registration currency directly in PPLS or with their state department of agriculture, as label amendments may have been issued. Key registered products include certain bioinsecticides (Bacillus thuringiensis, spinosad-based products), neem oil formulations, and a growing number of synthetic fungicides for powdery mildew and botrytis management. Using any pesticide not registered for hemp — even if registered for other crops — is a FIFRA § 12(a)(2)(G) violation. Pesticide residues in hemp or CBD products may result in product recall, lost contracts, and FDA enforcement action.

FIFRA Section 24(c) state-specific registrations

Reference: 7 U.S.C. § 136v(c) (FIFRA § 24(c)) Applies only: Within the registering state

Under FIFRA § 24(c), states may register pesticides for a "special local need" that is not covered by an existing federal Section 3 registration. Several states — including Colorado, Oregon, and Kentucky — have issued 24(c) registrations for specific pesticide products for use on hemp within their borders. A 24(c) registration is valid only within the state that issued it; using a 24(c)-registered product in another state is a FIFRA violation. Growers should check with their state department of agriculture for the current list of 24(c) registered products for hemp in their state. The state DOA typically maintains a searchable pesticide database or publishes a hemp pesticide list. State-level pesticide residue tolerance requirements for hemp products sold in-state may differ from federal tolerances; some states require hemp processors to test for pesticide residues before products can be sold.

7. Water rights, irrigation permits, and environmental compliance

Hemp is a moderately water-intensive crop, requiring 20–30 inches of water per growing season under dryland conditions and 3–5 gallons per plant per day under intense cultivation for floral CBD production. Water access and legal water rights are often more consequential to site selection than soil quality or climate, particularly in the water-scarce western United States.

Prior appropriation doctrine in western states

Applies to: CO, CA, OR, WA, MT, ID, WY, NV, UT, AZ, NM Key concept: "First in time, first in right"

In prior appropriation states, a new hemp operation must hold a valid water right to legally use surface water or, in many cases, groundwater. Water rights are granted by the state engineer or state water resources agency in a priority system: earlier-dated ("senior") water rights take precedence over later-dated ("junior") rights during shortages. A new hemp farm must apply for a new water right appropriation, purchase an existing water right from another user, or lease water under a temporary use arrangement. In Colorado, a new appropriation application is filed with the state engineer's Water Court; the process can take 2–8 years for contested appropriations. In California, the State Water Resources Control Board (SWRCB) processes new appropriative rights applications; groundwater in adjudicated basins requires compliance with a Groundwater Sustainability Agency plan under SGMA. Growers in western states should engage a water rights attorney before committing to a site without confirmed water rights. In eastern states (using riparian doctrine), no separate water right application is generally required for a farm with reasonable surface water or well access, though high-capacity well permits may be required.

Stormwater, wastewater, and environmental permits for processing facilities

Stormwater: NPDES permit (EPA or state-delegated) for >1 acre disturbed Processing wastewater: Industrial pretreatment standards may apply

Hemp farming itself (plowing, planting, irrigation) triggers NPDES stormwater permit requirements if more than 1 acre of land is disturbed during construction of farm infrastructure. Agricultural stormwater discharges from established farming operations are generally exempt from NPDES permitting under the Clean Water Act agricultural exemption (33 U.S.C. § 1342(l)), but new farm construction (grading, road building, irrigation canal construction) may require a Construction General Permit. Hemp processing facilities (extraction, drying, processing) that discharge process wastewater to a municipal sewer system may be subject to industrial pretreatment standards under the Clean Water Act (40 CFR Part 403). Hemp extraction wastewater can contain high concentrations of plant matter, solvents (ethanol, CO2), and cannabinoids — discharging these without local pretreatment authority approval can violate the sewer use ordinance. Contact your local publicly owned treatment works (POTW) before commencing hemp processing operations.

8. FDA regulation of hemp-derived CBD and state-level CBD laws

The FDA's regulatory position on hemp-derived CBD products is the most consequential and evolving compliance issue for hemp farmers who intend to sell into the CBD extract, food, or supplement markets. Understanding the current federal framework, state variations, and enforcement trends is essential for any hemp operation with a downstream CBD product strategy.

FDCA Section 301(ll): the CBD preclusion rule

Reference: 21 U.S.C. § 331(ll); FDCA § 301(ll) FDA guidance: Multiple statements 2019–2023

FDCA § 301(ll) makes it unlawful to introduce into interstate commerce any food to which has been added a drug that has been approved under 21 U.S.C. § 355 (the new drug approval process). CBD is the active ingredient in Epidiolex, an FDA-approved prescription drug (approved June 2018). Because CBD was the subject of substantial clinical investigations that were made public before its use in food, FDCA § 301(ll) precludes adding CBD to food or marketing it as a dietary supplement without specific FDA authorization. The FDA has repeatedly stated this position in guidance documents, press statements, and Warning Letters. Notably, CBD is also not an approved "food additive" under FDCA § 409, and the FDA has found no basis to conclude that CBD is "generally recognized as safe" (GRAS) for use in food. As of 2026, FDA has not issued a rule or guidance creating a lawful pathway for CBD in food or dietary supplements, though the agency has stated it is evaluating options. Hemp seed oil (made from cold-pressed hemp seeds, which contain negligible THC and CBD) is not subject to the FDCA § 301(ll) restriction because hemp seeds are not a source of CBD; hemp seed oil has GRAS status and is legally used in food.

State CBD regulations: a patchwork of approaches

Permissive states: CO, OR, CA (state law allows CBD food with conditions) Restrictive states: ID, IA (effectively ban most CBD products)

State-level CBD regulations vary dramatically and create a complex compliance map for hemp producers and downstream processors. Colorado, Oregon, California, and New York have enacted state-level frameworks that, under state law, permit CBD in food and dietary supplements sold within those states, with conditions such as maximum CBD per serving (typically 5–15 mg), labeling requirements, and batch testing mandates. These state frameworks conflict with the federal FDCA § 301(ll) prohibition for products moving in interstate commerce, creating a gray market that operates in many states. Idaho takes the most restrictive position: Idaho law requires all parts of the cannabis plant (including hemp with <0.3% THC) to contain no THC at all — even 0.3% THC is unlawful in Idaho. Iowa has similarly restrictive policies. Texas, which has an active hemp program, has been inconsistent in its CBD-in-food policy; the Texas Department of State Health Services has issued guidance restricting CBD in food but enforcement has been limited. Hemp farmers and processors planning CBD product lines should retain a food regulatory attorney to conduct a state-by-state market access analysis before investing in CBD extraction infrastructure.

9. Local zoning, banking, workers' compensation, and OSHA compliance

Beyond the hemp-specific federal and state licensing framework, hemp farms face the same local regulatory and employment law requirements as other agricultural operations. Several areas deserve particular attention for hemp: local zoning restrictions, banking access, workers' compensation, and OSHA agricultural safety requirements.

Local zoning and county restrictions on hemp cultivation

Zoning: Agricultural (A-1, A-2, farm) zones generally permit hemp Some counties: Have enacted local hemp cultivation bans

Hemp cultivation is generally a by-right agricultural use in agriculturally zoned land, and many state hemp laws preempt local bans on hemp cultivation by licensed growers. However, some counties and municipalities have enacted local ordinances restricting hemp cultivation due to odor (mature hemp flowers have a distinctive cannabis scent), concerns about visual identification as marijuana by passersby, and law enforcement resource concerns. In California, some counties imposed local hemp cultivation restrictions before CDFA established state preemption. In Texas, a handful of counties passed resolutions opposing hemp cultivation, though Texas state law generally preempts local prohibitions. Hemp processing facilities (dryers, extraction labs, CO2 or ethanol extraction equipment) typically require industrial or commercial zoning, building permits, fire marshal approval, and may require a Conditional Use Permit in agricultural zones. Processing facilities with significant odor emissions may need an air quality permit from the state environmental agency. Before signing a farm lease, confirm the county zoning code, consult the county planning department, and review any recent county resolutions or ordinances affecting hemp.

Banking, FDIC guidance, and access to financial services

Reference: FDIC FIL-16-2020; 2018 Farm Bill § 10113 Practical reality: Many banks remain reluctant despite legal clarity

Despite hemp's federal legality under the 2018 Farm Bill, hemp businesses continue to face banking difficulties. Many financial institutions — particularly large national banks — have been slow to update internal policies to distinguish hemp from marijuana, which remains a Schedule I controlled substance. The FDIC issued guidance (FIL-16-2020) in March 2020 clarifying that hemp businesses may be served by FDIC-insured institutions without triggering Suspicious Activity Report (SAR) obligations under the Bank Secrecy Act (BSA) for hemp-specific transactions, as long as the hemp business holds a valid state or USDA hemp license. The 2018 Farm Bill at § 10113 also explicitly states that hemp businesses shall have access to banking, insurance, and other financial services on the same terms as other legal agricultural operations. In practice, agricultural lenders — Farm Credit System lenders, USDA Farm Service Agency operating loans, and community banks in hemp-heavy states like Kentucky and Colorado — have been more willing to serve hemp producers than large commercial banks. Hemp businesses should seek an agricultural lender familiar with the crop, maintain meticulous licensing documentation, and be prepared to provide their state hemp license, USDA FSA farm number, and testing records to any financial institution.

Workers' compensation and OSHA agricultural standards

Workers' comp: Required in most states for farm employees OSHA: Agricultural exemption applies to small farms; larger farms subject to field sanitation, hazard communication standards

Hemp farm employers must comply with state workers' compensation laws. Most states require workers' compensation coverage for any farm that employs more than a threshold number of workers (thresholds vary: typically 1–5 regular employees). Workers' compensation premiums for farm workers are determined by state classification codes; hemp farm workers are typically classified under general farm laborer codes. Hemp harvest is particularly labor-intensive for floral CBD operations, where hand-harvesting and trimming require large numbers of seasonal workers; employment law compliance (I-9 documentation, minimum wage, overtime, housing for migrant workers under the Migrant and Seasonal Agricultural Worker Protection Act) must be maintained for all employees. OSHA's agricultural standards (29 CFR Part 1928) apply to farms employing 11 or more workers; smaller farms are generally exempt from OSHA inspection, though the General Duty Clause still applies to all employers. OSHA Field Sanitation Standard (29 CFR 1928.110) requires farms with 11 or more workers to provide toilets, handwashing facilities, and potable water in the field. Hemp processing facilities (covered under general industry OSHA standards, not the agricultural exemption) must comply with full OSHA requirements including Hazard Communication (29 CFR 1910.1200) for ethanol and CO2 used in extraction.

10. Startup cost breakdown and timeline

Here is a realistic cost picture for launching a 50-acre hemp farm producing floral CBD hemp (the highest-value use; fiber and grain hemp have lower input costs but also lower revenue per acre):

Item Low High
State hemp grower license (annual, 50 acres)$50$2,000
Certified feminized seed or clones (per 50 acres)$50,000$200,000
Drip irrigation system installation (per 50 acres)$25,000$150,000
Transplanting and cultivation labor$10,000$50,000
Fertilizer, amendments, and approved pesticides$5,000$20,000
Pre-harvest THC testing (DEA-registered lab, 10–15 samples)$1,500$7,500
Drying and processing infrastructure$20,000$200,000
Post-harvest testing (potency, pesticide residues, heavy metals)$2,000$10,000
USDA NOP organic certification (optional)$800$2,000
Farm liability insurance (annual)$2,000$8,000
Workers' compensation insurance (seasonal harvest crew)$3,000$15,000
LLC formation, attorney, accountant (first year)$1,500$10,000
Land lease (annual, 50 acres agricultural land)$5,000$50,000
Working capital (first season through harvest)$20,000$75,000
Total (50-acre floral CBD hemp farm, first year)$145,850$799,500

A typical hemp farm launch timeline: Month 1–2: identify and lease farmland, confirm zoning and water rights, begin state hemp license application; Month 1–3: register with FSA, complete background check requirements, receive state hemp license; Month 2–4: source and order certified seed or clones, install irrigation infrastructure; Month 3–5 (after last frost): transplant or direct seed; Month 5–7: notify licensing authority of anticipated harvest, schedule pre-harvest THC sampling; Month 6–8: harvest compliant crop, cure and dry, arrange buyer testing; Month 8–10: sell harvested hemp or extract CBD through a licensed processor. The critical path item is the state hemp license — many state programs have application deadlines in winter or early spring before the growing season; missing the deadline means waiting until the following year.

Frequently asked questions

What is the legal definition of hemp under federal law and how does it differ from marijuana?

Hemp and marijuana are both Cannabis sativa L., the same botanical species, but federal law distinguishes them by their delta-9 THC concentration. Under the Agriculture Improvement Act of 2018 (2018 Farm Bill, Pub. L. 115-334), hemp is defined as "the plant Cannabis sativa L. and any part of that plant, including the seeds thereof and all derivatives, extracts, cannabinoids, isomers, acids, salts, and salts of isomers, whether growing or not, with a delta-9 tetrahydrocannabinol concentration of not more than 0.3 percent on a dry weight basis." This definition is codified at 7 U.S.C. § 1639o and cross-referenced in the Controlled Substances Act at 21 U.S.C. § 802(16)(B). Hemp meeting this definition was removed from Schedule I of the Controlled Substances Act (CSA), making it a legal agricultural commodity rather than a controlled substance. Any Cannabis sativa L. plant exceeding 0.3% delta-9 THC on a dry weight basis is legally classified as marijuana and remains a Schedule I controlled substance under the CSA — a critical distinction with severe legal consequences. Producers must therefore test all crops pre-harvest to confirm THC levels are within the legal threshold. The 0.3% THC limit applies to the delta-9 THC isomer specifically; total THC (delta-9 plus THCA multiplied by a conversion factor of 0.877) is used in some contexts, and the USDA Final Rule requires labs to measure both delta-9 THC and THCA for the "total THC" determination used in compliance. Farmers who do not understand this distinction risk felony drug charges if their crop tests over the limit.

What does the USDA Final Rule (7 CFR Part 990) require and what is the difference between a USDA Plan and a State/Tribal Plan?

The USDA Final Rule, published October 31, 2019 and effective March 22, 2021 at 7 CFR Part 990, establishes the federal hemp production regulatory framework authorized by the 2018 Farm Bill. Under this framework, hemp producers operate under one of three licensing structures. A State Plan is a state-administered program that has been approved by the USDA; states submit their hemp production plan to USDA's Agricultural Marketing Service (AMS) for approval, and once approved, the state issues licenses to growers and administers all testing and compliance functions. A Tribal Plan works identically but applies to federally recognized Indian tribes governing their own lands. Where no approved State or Tribal Plan exists, a USDA Plan applies — USDA directly licenses producers through the AMS. Key requirements under all plans include: (1) maintaining accurate land and location information for all hemp production sites (GPS coordinates to within 100 meters, legal land description); (2) mandatory pre-harvest THC testing by a DEA-registered laboratory within 15 days of the anticipated harvest; (3) a sampling protocol requiring random sampling by a federal or state agent (not by the farmer themselves); (4) records retention for a minimum of 3 years; (5) reporting of disposal of non-compliant plants; and (6) background checks (USDA Plan requires criminal history review; persons with prior drug felony convictions were ineligible to grow hemp for 10 years from conviction date under the original 2018 Farm Bill — this restriction was modified by the 2023 Farm Bill). As of 2026, over 40 states have approved State Plans; the remaining states and territories default to the USDA Plan. Producers must confirm which plan governs their state before applying for a license.

How does the THC pre-harvest testing process work, what labs can test, and what happens if a crop tests "hot"?

Pre-harvest THC testing is one of the most operationally critical compliance requirements for hemp farmers. Under 7 CFR §§ 990.70–990.76, farmers must notify their licensing authority (state department of agriculture or USDA) when hemp is within 15 days of anticipated harvest. A licensed agent — typically a state department of agriculture employee, a USDA inspector, or an approved third party — then collects samples from the flowering tops of cannabis plants (the part with the highest THC concentration). Farmers cannot sample their own crops for compliance testing; self-sampling invalidates the test. Samples must be sent to a DEA-registered laboratory for analysis using post-decarboxylation methods (HPLC or GC/MS) that convert THCA to delta-9 THC to determine "total THC." A crop tests compliant if total THC (calculated as: delta-9 THC + 0.877 × THCA) is at or below 0.3% on a dry weight basis. A crop that tests above 0.3% but at or below 1.0% total THC is classified as "negligent non-compliance" under 7 CFR § 990.6 — sometimes called a "hot crop." For hot crops in the 0.3%–1.0% range, the farmer must remediate (destroy) the crop and report the disposal to the licensing authority, but no criminal liability attaches for the first offense. A crop testing above 1.0% total THC triggers mandatory DEA involvement because the crop is classified as marijuana rather than hemp; the farmer may face criminal prosecution for cultivation of a Schedule I controlled substance. The USDA Final Rule limits negligent violations to no more than one per two-year period before a producer's license is revoked. Hot crop risk is managed by genetic selection (choosing certified low-THC seed varieties), environmental management (heat, drought, and photoperiod stress can drive THC upward), and timing harvest early in the maturation window before THC levels peak.

What state hemp grower licenses are required, and how do requirements vary across major hemp-producing states?

Every state that has an active hemp program requires an annual hemp grower license from its state department of agriculture, separate from the federal framework. Requirements vary significantly. In California, the CDFA Industrial Hemp Program requires growers to register with their county agricultural commissioner (not directly with CDFA), pay registration fees (typically $900–$2,000 per year depending on acreage), submit a site plan and GPS coordinates for all growing sites, and comply with California Food and Agricultural Code §§ 81000–81010. California requires licensed seed sources or clones from licensed nurseries. In Texas, the Texas Department of Agriculture Hemp Program requires an annual Grower License ($100 application fee plus a per-acre fee of $8.50–$15), submission of GPS coordinates, seed variety information, and agreement to USDA-compliant sampling. Texas uses its own approved State Plan and requires crops to be tested at a Texas-approved laboratory. In New York, the Department of Agriculture and Markets Hemp Program issues a three-year license ($50 application fee); growers must report acreage planted and comply with NY-specific sampling protocols. In Kentucky, the Kentucky Department of Agriculture (KDA) issues annual hemp grower licenses ($50–$500 depending on acreage); Kentucky was one of the first states with a USDA-approved state plan and has a robust grower support infrastructure. In Colorado, the Colorado Department of Agriculture (CDA) issues annual grower registrations (fee varies by acreage); Colorado requires that hemp be grown from certified seed or registered seed varieties. Across all states, growers must submit updated site information annually, as licenses do not automatically renew with the same acreage or field locations.

What pesticide regulations apply to hemp farms, and how does FIFRA compliance work given the limited number of registered pesticides?

Pesticide use on hemp is one of the most operationally challenging compliance areas for hemp farmers because very few pesticides have been registered for use on hemp under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). The EPA must register pesticide products for specific crops (called "use patterns"). Until a pesticide is registered for hemp, it cannot legally be used on hemp crops, even if it is registered for use on other crops in the same field rotation. Prior to 2018, hemp was illegal federally, so no conventional pesticide registration existed for hemp. The EPA has since accepted applications and registered a growing number of pesticides for hemp use. As of 2026, approximately 40–60 products carry EPA Section 3 registrations specifically listing hemp as a registered crop. Growers can check the current list at the EPA's Pesticide Registration database. Under FIFRA § 24(c), states may register pesticides for "special local needs" not covered by federal registration; some states have issued 24(c) registrations for specific pesticides on hemp. Using a pesticide on hemp in a manner inconsistent with its FIFRA label is a federal violation under FIFRA § 12(a)(2)(G), which can result in civil penalties up to $19,000 per violation per day and criminal penalties for knowing violations. Hemp destined for human consumption (flowers, extracts, CBD) faces additional scrutiny: the FDA can take action if pesticide residues exceed tolerances, and many states require pesticide residue testing for hemp products sold to consumers. Certified organic hemp farmers must use only OMRI-listed materials approved under the USDA National Organic Program (NOP); fortunately, several OMRI-listed bioinsecticides (spinosad, azadirachtin) are effective for hemp pest management and widely used.

What water rights and irrigation permits are required for hemp farms, and why are these especially critical in western states?

Water access is a fundamental requirement for hemp cultivation, and the permitting regime varies dramatically between eastern and western states. In eastern states (east of the 100th meridian), water rights generally follow riparian doctrine — landowners adjacent to a water body have the right to use reasonable quantities of surface water. No separate water rights permit is required in most eastern states for a farm with an existing well or surface water access, though some states (e.g., Georgia, Virginia) require well permits or registration for high-capacity wells. In western states (west of the 100th meridian), prior appropriation doctrine applies: water is allocated by seniority of right ("first in time, first in right"), and a new operation must apply for a new water right from the state engineer or state water resources agency before withdrawing water from any surface or groundwater source. In Colorado, water rights applications are filed with the State Engineer through the Division of Water Resources; processing can take 1–5 years for a new appropriation. In California, the State Water Resources Control Board (SWRCB) administers water rights; growers using surface water must hold an appropriative right or file a statement of water diversion. Many California hemp operations use drip irrigation from wells; groundwater extraction in California Sustainable Groundwater Management Act (SGMA) basin areas requires compliance with a local Groundwater Sustainability Agency plan. In Oregon, a water use permit is required for any surface or groundwater use for irrigation. In Nevada and Arizona, water is acutely scarce; hemp irrigation is possible only with existing water rights or purchased water shares. Hemp requires approximately 20–30 inches of water per growing season; at one acre-foot of water per acre (approximately 325,851 gallons), a 50-acre hemp farm needs 50 acre-feet per season. Securing adequate water rights before committing to a farm site in any western state is essential — water rights can be more valuable and harder to obtain than the land itself.

What are the FDA regulations on hemp-derived CBD and what restrictions apply to CBD in food and dietary supplements?

The FDA's regulatory position on hemp-derived CBD products under food and dietary supplement law is among the most consequential compliance issues for hemp farmers who intend to sell into the CBD market. Under FDCA § 301(ll) (21 U.S.C. § 331(ll)), it is unlawful to introduce into interstate commerce any food to which has been added a drug or a substance for which substantial clinical investigations have been instituted and made public. CBD (cannabidiol) was the subject of substantial clinical investigations (GW Pharmaceuticals' Epidiolex, approved by FDA in 2018 as a prescription drug for seizure disorders). The FDA's position, stated in guidance issued from 2019 through 2023, is that CBD cannot lawfully be added to food or marketed as a dietary supplement under existing law without FDA authorization — because CBD is an approved drug ingredient, the FDCA § 301(ll) preclusion applies. As of 2026, Congress has not passed legislation creating a clear regulatory pathway for CBD in food and dietary supplements, though multiple bills have been introduced. FDA enforcement of the CBD prohibition in food has been episodic rather than comprehensive — FDA has issued Warning Letters to companies making disease claims about CBD products but has largely declined to act against companies selling CBD topicals or products without drug claims. The practical result is regulatory uncertainty: many hemp-derived CBD products are sold despite the lack of FDA authorization, with enforcement concentrated on egregious disease claims. At the state level, state CBD regulations vary dramatically. Some states (Idaho, Iowa) effectively prohibit all CBD products. Other states (Colorado, Oregon, California) have enacted state-level frameworks allowing CBD in food and dietary supplements under state law, though the federal prohibition still technically applies. Hemp farmers producing for CBD extraction markets must understand that their downstream buyers operate in a gray area that could shift with FDA enforcement priorities or congressional action. Hemp grown for fiber, grain (hemp seed oil, hempseed), and other non-CBD uses is not subject to the FDCA § 301(ll) restriction.

What does it cost to start a hemp farm, what are the USDA FSA registration requirements, and what banking challenges will I face?

Starting a hemp farm involves regulatory, input, and infrastructure costs that vary significantly by acreage, use (fiber, grain, or floral CBD production), and state. Regulatory costs include: state hemp grower license ($50–$2,000/year depending on state and acreage); USDA FSA farm number registration (free but required for all hemp producers — producers must report hemp acreage to their local FSA office using FSA Form CCC-576 within 30 days of planting or by the county reporting deadline); DEA-registered lab testing ($150–$500 per sample, with multiple samples required for larger fields — USDA requires one sample per five contiguous acres or at least one sample per field); and organic certification ($800–$2,000/year from an accredited certifier if pursuing NOP certification). Production costs for floral CBD hemp (the highest-value use) per acre include: certified feminized seed or clones ($1,000–$4,000/acre); soil amendment and fertilizer ($200–$600/acre); irrigation infrastructure ($500–$3,000/acre for drip system installation); labor for transplanting, canopy management, and harvest ($1,500–$5,000/acre); drying and processing infrastructure ($20,000–$200,000 for a farm-scale dryer and processing building); and post-harvest testing for pesticide residues and CBD potency (required by most buyers, $150–$400 per sample). For fiber and grain hemp, inputs are lower ($300–$800/acre total) but revenue per acre is also lower ($200–$600/acre for grain, $200–$400/acre for fiber). Banking is a persistent challenge for hemp operations despite the crop's federal legality: many banks remain reluctant to serve hemp businesses due to compliance costs and confusion with marijuana banking restrictions. FDIC guidance (FIL-16-2020) clarified that hemp businesses may legally be banked, and the 2018 Farm Bill explicitly allows hemp producers to access federal banking services, but in practice many community banks and credit unions have been slow to adopt hemp-friendly policies. Hemp-specific financial service providers and agricultural lenders familiar with the crop are often the most reliable banking partners for new hemp farms.

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