HVAC Certification in Texas: Requirements, Cost, Exam & Steps

Working in HVAC in Texas requires navigating two separate credentialing systems: a state license from TDLR (Texas Department of Licensing and Regulation) and a federal EPA 608 certification for refrigerant handling. Understanding the difference — and knowing which ones you need — is the first step toward a legal, compliant HVAC career.

The TDLR ACR (Air Conditioning and Refrigeration) program operates under Texas Occupations Code Chapter 1302. It requires anyone performing HVAC work in Texas to be licensed. The EPA 608 certification operates under the Clean Air Act and requires anyone purchasing or handling refrigerants to be certified.

This guide walks through both systems, from the entry-level technician registration to the full Class A contractor license, with costs and timelines for each step.

This is the most common area of confusion for people entering the HVAC field. Here is the key distinction:

TDLR ACR License (State — Texas)

• Required to perform HVAC work in Texas
• Issued by the Texas Department of Licensing and Regulation
• Expires annually — must be renewed
• Contractors need 8 hours of CE per year
• Four tiers: registered technician → certified technician → Class B contractor → Class A contractor

EPA 608 Certification (Federal — U.S.)

• Required to purchase and handle refrigerants
• Issued by the U.S. Environmental Protection Agency
• Does not expire (lifetime certification)
• No CE requirement
• Four types: Type I (small appliances), Type II (high-pressure), Type III (low-pressure), Universal (all)

Having an EPA 608 certification alone does not make you a licensed HVAC professional in Texas. And having a TDLR license alone does not authorize you to handle refrigerants. Most HVAC professionals need both.

The fastest way to start working in HVAC in Texas is to register as a TDLR Registered Technician. This is the entry-level designation — no exam, no experience, and no prior training are required.

How to Register

1. Go to the TDLR website and navigate to the ACR program
2. Submit a registered technician application
3. Pay the $20 application fee
4. Receive your registration

As a registered technician, you can perform HVAC work under the supervision of a licensed contractor. You cannot operate independently or start your own HVAC business. Your registration must be renewed annually ($20), but there is no continuing education requirement for technicians.

The next step up is Certified Technician. You qualify through either 24 months of practical ACR experience under a licensed contractor or a TDLR-approved 2,000-hour certification program (apply within 48 months of completing it) — you must also be at least 18 and pass the certified technician exam. The application fee is $50.

A contractor license (Class A or Class B) is the goal for HVAC professionals who want to operate independently, start their own business, or take on larger projects. Here is the path:

Standard Path (48 Months Experience)

1. Register as a technician with TDLR ($20)
2. Work under a licensed contractor for 48 months within the past 72 months
3. Apply for contractor license ($115)
4. Pass the TDLR contractor exam (Class A or Class B)
5. Obtain general liability insurance
6. Receive your contractor license

Certified Technician Path (36 Months)

1. Obtain certified technician designation (24 months of supervised experience or a TDLR-approved 2,000-hour program, plus the exam)
2. Hold certification for at least 12 months
3. Accumulate 36 months of experience within the past 48 months
4. Apply, pass the exam, and obtain insurance

The contractor exam covers Texas law, administrative rules, mechanical codes, refrigerant handling, and system design. It must be taken in person at a testing center.

Class A vs. Class B: Class A allows work on any size unit (unlimited tonnage). Class B is limited to 25 tons cooling and 1.5 million BTU/hour heating. Choose based on the type of work you plan to do.

The EPA Section 608 certification is required under the Clean Air Act for anyone who purchases, handles, or works with refrigerants. There are four types:

• Type I: Small appliances containing 5 pounds or less of refrigerant (window AC units, household refrigerators)
• Type II: High-pressure appliances (most residential and commercial AC systems, heat pumps)
• Type III: Low-pressure appliances (large commercial chillers)
• Universal: All three types combined — this is what most HVAC professionals get

The EPA 608 exam is multiple choice and can be taken at testing centers or, in some cases, online. Exam fees typically range from $20 to $40. Once you pass, the certification does not expire — it is a lifetime credential with no CE requirement.

With the ongoing refrigerant transition from R-410A to R-454B (an A2L mildly flammable refrigerant), understanding refrigerant handling is more important than ever. While EPA 608 has not yet been updated to specifically require A2L training, the practical knowledge is essential for safe handling of new equipment.

Here is what you can expect to pay at each stage of HVAC certification and licensing in Texas:

Getting Started (Year 1)

• TDLR Registered Technician application: $20
• EPA 608 Universal exam: $20-$40
• Total to start working: ~$40-$60

Advancing to Certified Technician

• 2,000-hour certification program: Varies by program
• TDLR Certified Technician application: $50

Contractor License

• TDLR Contractor application: $115
• Contractor exam fee: Varies by testing provider
• General liability insurance: Varies

Annual Maintenance

• Technician renewal: $20/year registered, $35/year certified (no CE required)
• Contractor renewal: $65/year + 8 hours CE ($22.95 at OnlineTexasCE.com)
• Total annual contractor cost: $87.95

Once you hold your HVAC credentials, here is what you need to do to maintain them:

TDLR Technician (Registered or Certified)

• Renew annually ($20 registered, $35 certified)
• No CE required
• Continue working under a licensed contractor

TDLR Contractor (Class A or Class B)

• Renew annually ($65)
• Complete 8 hours of CE annually (1 hour Texas law + 7 hours technical topics)
• Maintain general liability insurance
• Keep CE completion certificates for at least 1 year — your provider reports the completion to TDLR, but TDLR can still request records in an inspection or investigation

EPA 608

• No renewal required — lifetime certification
• No CE required
• Stay current on refrigerant handling best practices voluntarily

OnlineTexasCE.com offers a TDLR-approved 8-hour ACR CE course for $22.95 — covering Texas law, mechanical codes, refrigerant handling (including the R-454B transition), safety, and industry updates. No final exam. Complete it online from any device.

Related HVAC guides: see the complete Texas HVAC licensing path and TDLR ACR program guide, and the contractor application walkthrough.