Clean Air Act Section 608

Leak Detection & EPA 608 Compliance

Refrigerant you keep adding is refrigerant you keep losing — and on a large-charge system, that is a federal recordkeeping matter.

Request a Leak Survey (979) 985-2628

Topping Off Is Not a Repair

If a system needs refrigerant added on a recurring basis, it has a leak. Adding charge treats the symptom, costs money every visit, and — on a commercial system with a significant refrigerant charge — puts the owner on the wrong side of federal rules that exist precisely to stop refrigerant from being treated as a consumable.

Section 608 of the Clean Air Act prohibits knowingly venting refrigerant, requires that only certified technicians handle it, and imposes leak repair obligations on larger appliances. It is one of the few areas where a maintenance decision is also a compliance decision, and where the records you keep matter as much as the work you do.

The practical consequence for a facilities manager is simple: a chronic leak is not a line item on a service invoice. It is a liability that grows, and it should be found and fixed rather than fed.

Leak Detection & Repair Services

Electronic Leak Detection

Systematic leak surveys using electronic detectors, plus ultraviolet dye and bubble methods where the application calls for them.

Leak Rate Calculation

Annualized leak rate calculated from charge added and appliance full charge — the number that determines whether a repair deadline has been triggered.

Leak Repair

Repair at the source — brazed joints, valve stems, gaskets, Schrader cores, and vibration-fatigued lines — rather than a recharge and a promise.

Verification Testing

Initial and follow-up verification tests after repair, so the fix is proven rather than assumed.

Compliance Recordkeeping

Service records documenting charge added, leak rate, repairs, and verification results — the paperwork that matters if you are ever asked for it.

Retrofit & Refrigerant Transition

Guidance on systems running legacy high-GWP refrigerants that are getting scarcer and more expensive under the AIM Act HFC phasedown.

What EPA Section 608 Actually Requires

Knowingly venting refrigerant during service, maintenance, repair, or disposal is prohibited.

Refrigerant must be recovered and handled by technicians certified under Section 608 — certification is by type (Type I small appliances, Type II high-pressure, Type III low-pressure, or Universal).

Leak repair obligations attach to appliances containing 50 or more pounds of refrigerant — which is where most commercial racks, chillers, and larger process systems land.

Leak rate thresholds differ by appliance category: industrial process refrigeration, commercial refrigeration, and comfort cooling each have their own trigger, and exceeding it starts a repair clock.

When a threshold is exceeded, leaks must be repaired within the prescribed window and the repair confirmed by initial and follow-up verification tests.

If repairs cannot bring the appliance below its threshold, a retrofit or retirement plan is required rather than indefinite recharging.

Records of charge added, leak rate, repairs, and verification tests must be retained — an undocumented repair is, for compliance purposes, difficult to distinguish from no repair.

These rules have been through multiple rounds of rulemaking and litigation, particularly regarding which refrigerants are covered. We verify current applicability for your specific system and refrigerant rather than working from a memorized threshold.

Stop Feeding the Leak

Leak surveys, repair, and compliance documentation across East Texas, Houston, and DFW.

Request a Leak Survey (979) 985-2628

Related Services

Rack Systems

Chillers

Walk-In Coolers & Freezers

Inspections