DC Journeyman Air Conditioning and Refrigeration (312) DC’s 312 exam now emphasizes EPA Section 608 compliance and low-GWP refrigerant handling—reflecting the industry’s shift toward environmentally responsible cooling systems. You’ll work with modern equipment standards and regulations governing ozone-depleting substance phase-outs, ensuring your credentials align with current environmental mandates that reshape HVAC installations across the region.
| Exam Name | DC Journeyman Air Conditioning and Refrigeration |
| Exam Code | 312 |
| Format | PDF & Practice Test Engine |
| Target Year | 2026 Updated |
| Features | 100% Verified Q&As |
