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40 CFR Part 84 Subpart C

Education Hub

Understanding EPA refrigerant compliance requirements for systems with 15 pounds or more of refrigerant. Learn about leak rate calculations, recordkeeping, and federal regulatory compliance.

Compliance Resources

Educational articles about 40 CFR Part 84 Subpart C regulations and requirements

Compliance
EPA Subpart C: Complete Compliance Checklist for 2026
Step-by-step compliance checklist for 40 CFR Part 84 Subpart C regulations now in effect. Covers equipment inventory, leak rate tracking, automatic leak detection, repair procedures, and recordkeeping.
Compliance
Recordkeeping Requirements Under 40 CFR § 84.106
Complete guide to refrigerant recordkeeping requirements under Subpart C. Learn what records must be maintained, retention periods, required data elements, audit preparation, and compliance documentation obligations.
Regulatory
Understanding the AIM Act and 40 CFR Part 84 Subpart C
Comprehensive guide explaining the relationship between the AIM Act and Subpart C regulations, legal responsibilities for owners vs contractors, compliance obligations, and enforcement penalties.
Regulatory
Understanding the 15-Pound Refrigerant Threshold
Complete guide to the 15-pound refrigerant charge threshold under 40 CFR Part 84 Subpart C. Learn which equipment types are covered, refrigerant GWP requirements, and compliance obligations.
Tool
Free EPA Leak Rate Calculator - Calculate Compliance Instantly
Interactive calculator to determine if your equipment meets EPA Subpart C leak rate thresholds. Choose between annualized or rolling average methods and see instant results.
Technical
EPA Subpart C Leak Rate Calculation Guide
Complete guide to calculating leak rates under 40 CFR Part 84 Subpart C. Learn the two calculation methods (annualized vs rolling average), thresholds by equipment type, and compliance requirements.

Have Questions About Compliance?

This site provides educational information about EPA regulations under 40 CFR Part 84 Subpart C. For specific compliance guidance, consult the official federal regulations and qualified professionals.