HVAC Contractor Permit Requirements in Casper, WY

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. Wyoming Department of Revenue — Sales Tax License

   Required for all businesses selling taxable goods or services in Wyoming. Wyoming charges a 4% state sales tax; counties may add up to 2% and optional resort taxes may apply. Register with the Wyoming Department of Revenue online.

   Official government source

   $60 one-time sales/use tax license fee (W.S. § 39-15-106(a))·Immediate (online)

   $60 one-time sales/use tax license fee (W.S. § 39-15-106(a))

   Immediate (online)

2. EPA Section 608 Certification (for refrigerants)

   Technicians who purchase, recover, or handle refrigerants must hold EPA Section 608 certification. Required by federal law regardless of state.

   Official government source

   $20–$100 (exam)·1–2 days

   $20–$100 (exam)

   1–2 days

1. City of Casper — Mechanical (HVAC) Contractor License

   Wyoming has no statewide HVAC contractor license; licensing is local. In Casper, HVAC contractors are licensed by the City of Casper Building Inspection Division (Mechanical Contractor, Master, and Journeyman classes; ICC exams required for Master/Journeyman). EPA Section 608 certification is required for refrigerant handling, and a city mechanical permit is required for each installation.

   Official government source

   $300 new Mechanical Contractor license ($150 renewal); Master $75; Journeyman $25·4–8 weeks

   $300 new Mechanical Contractor license ($150 renewal); Master $75; Journeyman $25

   4–8 weeks

2. City of Casper Business/Health License (most businesses exempt)

   Casper does not require a general business license. The city licenses only enumerated business types (junk dealers, pawnshops, itinerant merchants, unsolicited salesmen, secondhand dealers, hotels/rooming houses, buses, taxicabs). However, businesses affecting public health - food service (including catering, food trucks, and bakeries), child day cares, body art/tattoo studios, massage therapy, and lodging - must obtain a City of Casper health license through the City Clerk after Casper-Natrona County Health Department inspection. Most other businesses (salons, trades, professional and personal services) need no city business license.

   Official government source

   $0 for most businesses; city health licenses $25-$100+ per year where required (e.g. restaurants $100 base)·Health licenses issued after inspection and fee payment; not applicable for most businesses

   $0 for most businesses; city health licenses $25-$100+ per year where required (e.g. restaurants $100 base)

   Health licenses issued after inspection and fee payment; not applicable for most businesses

3. Natrona County / Casper Mechanical Permit (per project)

   A mechanical permit must be obtained from the local building department for each HVAC installation or major repair. Inspections are required upon completion.

   Official government source

   Valuation-based: $70 minimum (work valued up to $1,000), increasing with project valuation per the city's combined building/electrical/plumbing/mechanical permit fee schedule·1–5 business days

   Valuation-based: $70 minimum (work valued up to $1,000), increasing with project valuation per the city's combined building/electrical/plumbing/mechanical permit fee schedule

   1–5 business days

Official Sources

• Wyoming HVAC Contractor License
• City of Casper City Clerk

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