California Class A Air-Conditioning Contractor (CA) California’s Class A credential covers the broadest scope among state HVAC certifications—encompassing design, installation, and service across all system types and sizes. Unlike narrower Class B or C licenses limiting scope to smaller units or specific applications, Class A holders can tackle commercial rooftop systems, industrial refrigeration, and complex multi-zone residential builds without restriction.
| Exam Name | California Class A Air-Conditioning Contractor |
| Exam Code | CA |
| Format | PDF & Practice Test Engine |
| Target Year | 2026 Updated |
| Features | 100% Verified Q&As |
