Annualizing
lb added ÷ full charge × 365 ÷ days since the last add × 100. With no earlier add, or one more than a year back, it uses 365 days.
Rosa's: 1.2 ÷ 22 × 365 ÷ 82 × 100 = 24.3%, over the 20% limit
40 CFR 84.106
Leak records that keep themselves
The AIM Act leak rule asks for a leak rate every time refrigerant goes into a covered circuit, and a repair within 30 days when the rate is over the limit. CoolerHeads works out the rate when the tech saves the add and keeps the record.
The same add on the same circuit, rated both ways: 1.2 lb into a 22 lb charge, 82 days after a 0.8 lb add.
Which circuits are covered
Each independent circuit is its own appliance under the rule. CoolerHeads marks a circuit covered when both of these are true.
Full charge
15 lb or more
Measured per circuit, so a rack with three circuits is three appliances.
Refrigerant
HFC or GWP above 53
A regulated HFC such as R-404A or R-448A, or a substitute whose global warming potential is above 53.
The limits
A rate above the limit for the circuit's appliance type starts a 30-day repair clock. CoolerHeads sets the limit from the type you pick when you add the circuit.
| Appliance type | Limit |
|---|---|
| Commercial refrigeration | 20% |
| Industrial process refrigeration | 30% |
| Comfort cooling | 10% |
Two ways to work out the rate
The owner picks one method per facility. You set it once on the site and every add on its circuits is rated that way.
Rolling average
lb added in the past 365 days, this add included ÷ full charge × 100.
Rosa's: (0.8 + 1.2) ÷ 22 × 100 = 9.1%, under the 20% limit
What the owner gets
Every add on the circuit, with its date, pounds, rate and the certified tech who did it. One tap sends it to the equipment owner after a repair.
- Repair clock. Due 30 days from the add, shown on the job until the repair is logged.
- Chronic leakers. A circuit that loses 125% or more of its full charge in a calendar year is reported by March 1. CoolerHeads totals the year for you.
Rosa's Taqueria
Walk-in freezer, Circuit A
R-448A, 22 lb full charge, annualizing
Oct 13, 2026: 1.2 lb added, 24.3%
M. Alvarez, EPA 608 certified. Repair due Nov 12
Over limit
Jul 23, 2026: 0.8 lb added, 3.6%
M. Alvarez, EPA 608 certified
Under limit
Start with one walk-in
Add a circuit, log an add, and see the rate and the record it makes.
CoolerHeads keeps the records 40 CFR 84.106 asks for. It is not legal advice; check the current rule text on eCFR for your situation.