Calculate system leak rates dynamically using the EPA annualized method. Under the AIM Act (40 CFR Part 84 Subpart C), the mandatory tracking threshold dropped from 50 lbs to 15 lbs on January 1, 2026.
Annualized leak rate calculations determine if a commercial refrigeration, comfort cooling, or industrial process system is leaking beyond statutory compliance limits.
Leak Rate % = (Lbs Added / Full Charge) * (365 / Days Since Last Addition) * 100
Under the EPA AIM Act (40 CFR Part 84 Subpart C), the mandatory leak rate tracking threshold was lowered from 50 lbs to 15 lbs on January 1, 2026. This means any comfort cooling or commercial refrigeration system containing 15 lbs or more of an HFC or HCFC refrigerant with a GWP > 53 must be tracked for leak compliance.
The maximum allowable annualized leak rate thresholds under the EPA rules are: 10% for Comfort Cooling (comfort AC and heating systems), 20% for Commercial Refrigeration (food storage, supermarkets, cold lockers), and 30% for Industrial Process Refrigeration (IPR).
The annualized leak rate is calculated using the following EPA-approved formula: Rate % = (Lbs Added / Full Charge) * (365 / Days Since Last Addition) * 100.
If a system exceeds the allowable leak rate threshold, the owner has 30 days from the date of leak detection to locate and repair the leak. If an industrial shutdown is required, this period may be extended to 120 days.
Yes, residential and light-commercial air conditioning and heat pump systems are generally exempt from the AIM Act leak repair rule (40 CFR 84.106). However, the app flags them conservatively for safety and compliance tracking.
Equipment Tracker Pro computes EPA Section 608 compliance math on-site, warns you of violations instantly, and stores audit-proof logs permanently.