Mobile Car Wash Permit Requirements in Detroit, MI

1. EIN (Employer Identification Number)

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

   Official government source

   Free·Immediate (online application)

   Free

   Immediate (online application)

2. EPA Stormwater Compliance — Clean Water Act Section 402

   Mobile car wash operations that discharge wash water are subject to the federal Clean Water Act. The EPA's National Pollutant Discharge Elimination System (NPDES) prohibits discharge of polluted wash water to storm drains or waterways without a permit. Most mobile operators achieve compliance by using containment systems and disposing of water via sanitary sewer. Larger operations (e.g., fleet washing facilities) may require an NPDES permit.

   Official government source

   Free (containment equipment: $200–$1,500)·Before first wash

   Free (containment equipment: $200–$1,500)

   Before first wash

1. Michigan Business Registration (LARA Corporations Division)

   Mobile car wash and auto detailing businesses operating in Michigan must register with LARA's Corporations, Securities & Commercial Licensing Bureau if structured as an LLC, corporation, or limited partnership — an LLC is formed by filing Articles of Organization (form CSCL/CD 700). Sole proprietors and general partnerships using a trade name instead file a certificate of assumed name with the county clerk (Wayne County for Detroit).

   Official government source

   $50 flat LLC Articles of Organization filing fee (LARA form CSCL/CD 700, rev. 07/25); corporation, limited partnership, and county assumed-name fees differ and are separate. Michigan waives the filing fee for qualifying veterans.·Varies; LARA does not publish a standard processing time for Articles of Organization on its Corporations Division pages — expedited service is available for an additional statutory fee (needs_review)

   $50 flat LLC Articles of Organization filing fee (LARA form CSCL/CD 700, rev. 07/25); corporation, limited partnership, and county assumed-name fees differ and are separate. Michigan waives the filing fee for qualifying veterans.

   Varies; LARA does not publish a standard processing time for Articles of Organization on its Corporations Division pages — expedited service is available for an additional statutory fee (needs_review)

2. Michigan Environmental / Stormwater Compliance

   Mobile car wash operations generate wastewater containing detergents, surfactants, oils, and road grime. Michigan environmental rules - consistent with federal Clean Water Act requirements - prohibit discharging this wash water to storm drains, street gutters, or waterways. Operators must use a wastewater containment mat and recovery system (wet/dry vacuum or pump), or ensure wash water goes to a sanitary sewer inlet with the local sewer authority's approval. Operators using hazardous cleaning solvents or degreasers may need a state permit. Contact the Michigan Department of Environment, Great Lakes, and Energy (EGLE), Water Resources Division, for compliance guidance - the former 'Michigan Department of Environmental Quality' (MDEQ) was renamed EGLE in 2019.

   Official government source

   No general registration fee published; permit fees apply only if a discharge permit is required - confirm with EGLE Water Resources Division·Varies - immediate with self-compliance; longer if a discharge permit is required

   No general registration fee published; permit fees apply only if a discharge permit is required - confirm with EGLE Water Resources Division

   Varies - immediate with self-compliance; longer if a discharge permit is required

3. Michigan Sales Tax Registration

   Car wash and auto detailing labor is generally NOT subject to Michigan sales tax - Michigan taxes retail sales of tangible personal property plus only the services enumerated in MCL 205.93a (telecommunications, transient lodging, certain textile laundering). If the business also sells taxable retail products (car-care merchandise, air fresheners), register with the Michigan Department of Treasury for a sales tax license and collect the 6% state sales tax on those sales. Michigan has no local sales tax.

   Official government source

   Free - no fee to register for a Michigan sales tax license·Immediate to 1 week (online via Michigan Treasury Online)

   Free - no fee to register for a Michigan sales tax license

   Immediate to 1 week (online via Michigan Treasury Online)

1. Detroit General Business License

   The City of Detroit does not require a general business license for mobile car wash or auto detailing businesses. BSEED (Buildings, Safety Engineering and Environmental Department) licenses only specific enumerated categories (vendors, lodging, amusement venues, consumer services, gas stations, second-hand dealers) — mobile car wash/detailing is not among them, so no annual city license applies.

   Official government source

   $0 — no general business license applies·N/A

   $0 — no general business license applies

   N/A

2. Detroit Stormwater / Wastewater Discharge Compliance (DWSD)

   Mobile car wash wastewater must not be discharged into storm drains, gutters, or waterways — wash water carries detergents, oils, and road grime. Inside Detroit the responsible local authority is the Detroit Water and Sewerage Department (DWSD), not the Department of Public Works: DWSD administers the City of Detroit's Post-Construction Stormwater Ordinance, approved by the Board of Water Commissioners and the Detroit City Council in 2018, together with the city's combined sewer system, and publishes the DWSD Stormwater Management Design Manual. Because Detroit's system is a combined sewer, anything entering a storm drain reaches the treatment system or, during wet weather, receiving waters. Practically, operators should (1) use a portable containment berm or mat to capture runoff, (2) recover wash water with a wet/dry vac or pump, and (3) dispose of it to an approved sanitary sewer connection with DWSD's approval or through a licensed disposal facility. At the state level EGLE regulates discharges to surface waters and stormwater under Michigan's water quality program; working outside Detroit puts you under a different municipality's ordinance.

   Official government source

   Detroit publishes no registration or inspection fee specific to mobile car wash discharge; DWSD's published Schedule of Fees and Penalties (FY2025-2026) governs its charges, and non-residential properties pay a drainage charge based on impervious area rather than a per-operator permit fee. The real costs are the containment and recovery equipment and lawful disposal, plus penalties for improper discharge. Note that BSEED's published business license fee schedule lists a Car Wash business license at $268.·No published permit or self-certification timeline exists for mobile operators — this is an ongoing compliance obligation rather than a permit with a processing period. Contact DWSD before beginning operations to confirm an approved sanitary sewer discharge point, and confirm the applicable ordinance separately for each municipality you work in outside Detroit.

   Detroit publishes no registration or inspection fee specific to mobile car wash discharge; DWSD's published Schedule of Fees and Penalties (FY2025-2026) governs its charges, and non-residential properties pay a drainage charge based on impervious area rather than a per-operator permit fee. The real costs are the containment and recovery equipment and lawful disposal, plus penalties for improper discharge. Note that BSEED's published business license fee schedule lists a Car Wash business license at $268.

   No published permit or self-certification timeline exists for mobile operators — this is an ongoing compliance obligation rather than a permit with a processing period. Contact DWSD before beginning operations to confirm an approved sanitary sewer discharge point, and confirm the applicable ordinance separately for each municipality you work in outside Detroit.

3. Wayne County Environmental Health - chemical handling (verify locally)

   No Wayne County 'Chemical Use Registration' program for small businesses could be located. Mobile detailing operations using chemical cleaning agents, degreasers, or solvents should maintain Safety Data Sheets and follow proper storage and disposal rules. Confirm any applicable registration or permit directly with Wayne County Health, Human & Veteran Services (Environmental Health) and with EGLE for wastewater/solvent handling.

   Official government source

   Varies - confirm with Wayne County Environmental Health·Varies - no published processing time

   Varies - confirm with Wayne County Environmental Health

   Varies - no published processing time

4. Detroit Home Occupation Zoning Compliance (if operating from residence)

   Mobile car wash operators who store their vehicle, equipment, and supplies at a residential address in Detroit must comply with the Detroit Zoning Ordinance's home-occupation/accessory-use provisions (no employee meetings at the residence, no exterior signage, no large-scale chemical storage). Detroit publishes no standalone 'Home Occupation Permit' product; a BSEED zoning verification letter can confirm compliance for an address, and a use that exceeds as-of-right limits goes to Special Land Use review through BSEED Zoning.

   Official government source

   $0 as-of-right. If written confirmation is wanted, a BSEED zoning verification letter is $93 per address/lot; if Special Land Use review is triggered, the hearing fee is $1,071 and site plan review is $210 (Minor) or $466 (Major) — BSEED Fee Schedule eff. 1/1/2024, mod. 7/18/2025. No '$160' fee exists in the schedule.·N/A as-of-right; confirm review scheduling with BSEED Zoning if Special Land Use review is required

   $0 as-of-right. If written confirmation is wanted, a BSEED zoning verification letter is $93 per address/lot; if Special Land Use review is triggered, the hearing fee is $1,071 and site plan review is $210 (Minor) or $466 (Major) — BSEED Fee Schedule eff. 1/1/2024, mod. 7/18/2025. No '$160' fee exists in the schedule.

   N/A as-of-right; confirm review scheduling with BSEED Zoning if Special Land Use review is required

Official Sources

• Detroit Business Licensing
• Michigan Environmental Quality — Water Programs
• EPA NPDES — Stormwater Discharges
• IRS EIN Application

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