HVAC Contractor Permit Requirements in Baton Rouge, LA

1. EIN (Employer Identification Number)

   Required if you have employees or operate as an LLC or corporation. Free from the IRS.

   Official government source

   Free·Immediate (online application)

   Free

   Immediate (online application)

1. Louisiana Department of Revenue — Sales Tax Registration

   Required for all businesses selling taxable goods or services in Louisiana. The Louisiana state sales tax rate is 5%. Sellers must apply for a sales tax certificate with the Louisiana Department of Revenue. Louisiana also has parish- and municipal-level sales taxes collected separately by local collectors, so the combined rate varies by parish and you must register with each applicable local collector in addition to the state.

   Official government source

   No registration fee is published by the Louisiana Department of Revenue.·Not published by the Louisiana Department of Revenue; the '1-5 business days' figure has no official source.

   No registration fee is published by the Louisiana Department of Revenue.

   Not published by the Louisiana Department of Revenue; the '1-5 business days' figure has no official source.

2. EPA Section 608 Technician Certification (refrigerant handling)

   Section 608 of the federal Clean Air Act (40 CFR Part 82, Subpart F) requires anyone who maintains, services, repairs or disposes of appliances containing regulated refrigerants — and anyone who buys those refrigerants — to hold EPA Section 608 technician certification. There are four types: Type I (small appliances), Type II (high-pressure and very-high-pressure equipment), Type III (low-pressure equipment) and Universal (all three). HVAC contractors in Louisiana normally need Type II or Universal. Testing is given by EPA-approved certifying organizations, not by EPA itself; EPA does not review or approve any preparatory training materials.

   Official government source

   EPA neither charges nor publishes a fee. Each EPA-approved certifying organization sets its own test price, so the '$20-$100' figure has no official source — check the price with the program you choose from EPA's approved-programs list.·Not published by EPA. Timing depends on the certifying organization you use: Type I can be done by open-book mail-in test through some programs, while Type II, III and Universal require a proctored exam that must be scheduled. Certification issued by an approved program does not expire.

   EPA neither charges nor publishes a fee. Each EPA-approved certifying organization sets its own test price, so the '$20-$100' figure has no official source — check the price with the program you choose from EPA's approved-programs list.

   Not published by EPA. Timing depends on the certifying organization you use: Type I can be done by open-book mail-in test through some programs, while Type II, III and Universal require a proctored exam that must be scheduled. Certification issued by an approved program does not expire.

1. Louisiana State Licensing Board for Contractors — Mechanical/HVAC Contractor License

   HVAC contractors in Louisiana must be licensed by the Louisiana State Licensing Board for Contractors (LSLBC, 600 North Street, Baton Rouge; 225-765-2301) under the mechanical specialty. Mechanical work valued over $10,000 requires licensure (commercial projects generally at $50,000 or more), and proof of general liability and workers' compensation insurance is required. The license is held by the company and supervised by a Qualifying Party who passes the trade exam. EPA Section 608 certification is separately required under federal law for refrigerant handling. Note the board's site moved from lslbc.louisiana.gov to lslbc.gov.

   Official government source

   Not published: LSLBC does not post a fee schedule on its public pages, so the '$200-$400 initial' figure is unverified. Confirm current application, exam and license fees with LSLBC at 225-765-2301 or through the online application portal.·Not published by the board; the '4-8 weeks' figure has no official source. Applications are approved at board meetings, so timing depends on the meeting calendar — confirm with LSLBC.

   Not published: LSLBC does not post a fee schedule on its public pages, so the '$200-$400 initial' figure is unverified. Confirm current application, exam and license fees with LSLBC at 225-765-2301 or through the online application portal.

   Not published by the board; the '4-8 weeks' figure has no official source. Applications are approved at board meetings, so timing depends on the meeting calendar — confirm with LSLBC.

2. City of Baton Rouge / Parish of East Baton Rouge Department of Finance — Business License

   All businesses in East Baton Rouge Parish must obtain an Occupational License from the Finance Department's Revenue Collection Division (225-389-3084), renewed annually and posted at the place of business. Some businesses additionally need approval from Permits & Inspections and/or the health authority, and a zoning clearance or Certificate of Occupancy carries a separate fee. Certain categories are exempt by ordinance (for example manufacturers except on retail sales, and several enumerated professions).

   Official government source

   A one-time registration fee of $50 if the business opens January 1–June 30 or $25 if it opens July 1–December 31. The annual tax is computed from gross receipts using the classification tables in the Occupational License Tax Ordinance and can exceed $500 for larger businesses — it is not a $50–$500 band.·Apply at least one month before opening. A temporary certificate is mailed after processing; after 30 days of operation you report gross receipts and the permanent license issues. Renewals are due January 1 and delinquent after March 1 (5% penalty per 30 days to a 25% maximum, plus 15% annual interest).

   A one-time registration fee of $50 if the business opens January 1–June 30 or $25 if it opens July 1–December 31. The annual tax is computed from gross receipts using the classification tables in the Occupational License Tax Ordinance and can exceed $500 for larger businesses — it is not a $50–$500 band.

   Apply at least one month before opening. A temporary certificate is mailed after processing; after 30 days of operation you report gross receipts and the permanent license issues. Renewals are due January 1 and delinquent after March 1 (5% penalty per 30 days to a 25% maximum, plus 15% annual interest).

3. East Baton Rouge Parish / Baton Rouge Mechanical Permit (per project)

   A mechanical (HVAC) trade permit must be obtained from the City-Parish Permits & Inspections Division for each installation, replacement or major repair, and a final inspection is required on completion. Trade permits are pulled through MyGovernmentOnline.

   Official government source

   $125 flat for a Residential Mechanical/Electrical/Plumbing/Gas trade permit. Commercial MEP trade permits are tiered by construction valuation: $125 up to $100,000; $300 over $100,000 through $500,000; $400 over $500,000 through $2,000,000; $600 above $2,000,000. A $25 technology fee applies to all permits.·Not published by Permits & Inspections; confirm current issuance and inspection scheduling with the division.

   $125 flat for a Residential Mechanical/Electrical/Plumbing/Gas trade permit. Commercial MEP trade permits are tiered by construction valuation: $125 up to $100,000; $300 over $100,000 through $500,000; $400 over $500,000 through $2,000,000; $600 above $2,000,000. A $25 technology fee applies to all permits.

   Not published by Permits & Inspections; confirm current issuance and inspection scheduling with the division.

Official Sources

• Louisiana State Licensing Board for Contractors — Mechanical/HVAC Contractor License
• City of Baton Rouge / Parish of East Baton Rouge Department of Finance
• EPA Section 608 Certification

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