“HVAC certified” can mean several different things in Texas. A school certificate, EPA Section 608 credential, TDLR technician designation and TDLR contractor license have different purposes. Establish which status your intended work requires before choosing a course. Texas calls this licensing area Air Conditioning and Refrigeration, or ACR.
Start with technician registration
TDLR requires people assisting a licensed ACR contractor with covered maintenance or repair work to obtain the appropriate technician designation, subject to exemptions. Registered technicians work under a licensed contractor’s supervision and may not advertise ACR services themselves. The technician registration page sets out the application and current fee. Registration is a starting work status, not an independent contracting license.
Before accepting work, ask the employer to identify the supervising contractor and explain how your duties and experience will be recorded. Keep dates, employer details and supervisor information. This is useful when you later need formal verification, but your own log does not replace the agency’s required supervisor forms.
Certified technician is a distinct Texas designation
TDLR’s certified technician designation is voluntary and exceeds registered technician standards. Its certified technician page provides two qualification routes: 24 months of supervised ACR-related work, or a department-approved certification program comprising 2,000 hours of combined instruction and practical experience. For the approved-program route, application materials must reach TDLR within 48 months of program completion. Applicants must be at least 18 and complete the application and examination requirements.
Before paying for a school that advertises this route, verify the exact program’s TDLR approval. A general HVAC diploma or an EPA exam-preparation certificate is not automatically a department-approved 2,000-hour program. Certified technicians still work under a contractor and cannot independently advertise ACR services.
Contractor experience requirements
TDLR’s contractor application page lists two standard experience routes: at least 48 months within the preceding 72 months of supervised ACR-related practical experience, or a Texas technician certification held for the previous 12 months plus at least 36 months within the preceding 48 months of supervised practical experience. Supervisors must complete the experience verification forms.
Education and other experience exceptions may apply, but do not subtract time from these requirements based on a school’s verbal promise. Have TDLR confirm which exception applies to your documented education or employment. Your expected graduation date alone does not establish contractor eligibility.
Examination, scope and insurance
After reviewing the application and qualifications, TDLR authorizes eligible applicants to take the relevant examination. All application requirements, including the examination, must be completed within one year of filing. After passing, the applicant must provide the required insurance certificate. Active contractors must maintain commercial general liability coverage meeting the applicable class requirements.
The official exam page distinguishes environmental-air and commercial-refrigeration exams and Class A and Class B versions. Choose your intended license scope with the agency’s guidance, and use the current candidate bulletin for examination content, references and fees. Do not assume one endorsement permits every service.
EPA 608 remains a separate check
Federal refrigerant certification is independent of Texas contractor licensing. An EPA card does not give a new technician authority to advertise a Texas contracting business; a Texas registration does not by itself establish the required refrigerant certification. Read the EPA 608 guide to understand the federal categories.
Your next step is to identify your current designation, match your documented experience to the official route and confirm unresolved questions directly with TDLR before committing to fees or training. This guide explains the pathway; TDLR determines individual eligibility.
Sources & verification
Sources checked October 19, 2026. Statistical reference dates are stated separately. Official application rules may change.