EPA Section 608 refrigerant log template: what to record, and under which rule

Page last updated September 21, 2026 · Rules and sources checked September 21, 2026

Most HVAC contractors know the 50-pound rule: appliances with 50 or more pounds of ozone-depleting refrigerant need a leak-rate calculation, a repair timeline if they leak too much, and three years of records. What a lot of shops missed is that since January 1, 2026, a second, lower threshold runs alongside it. Under the AIM Act's HFC rule, any commercial or light-industrial appliance with 15 or more pounds of an HFC refrigerant like R-410A now falls under the same 10/20/30 percent trigger rates and the same kind of recordkeeping — just under a different part of the federal code. A multi-zone VRF system or a light commercial rooftop unit that never touched Section 608 before is very likely covered now.

Who this is for

HVAC contractors and shop owners who install, service, or dispose of stationary refrigeration and air-conditioning equipment — comfort cooling, commercial refrigeration, or light industrial systems — and need to know what belongs in a compliant refrigerant log, at what appliance size the federal recordkeeping rules kick in, and how to calculate a leak rate correctly.

It's not a substitute for reading 40 CFR Part 82, Subpart F and 40 CFR Part 84, Subpart C directly, and it doesn't cover MVAC (vehicle) air conditioning, which sits under a separate subpart. General jobsite safety and PPE requirements are covered separately in the OSHA residential trades safety checklist. If you're choosing HVAC-specific field service software to track this kind of recordkeeping automatically, see best HVAC software with QuickBooks sync.

Two frameworks, one shared set of trigger rates

EPA runs two parallel leak-repair programs that use the same math but cover different refrigerants and different appliance sizes. Mixing them up is the single most common mistake shops make when they assume the old 50-lb line is still the only one that matters.

Both frameworks use the identical trigger rates once an appliance is covered:

A standard residential split system on R-410A typically runs 6–12 lbs and stays under the 15-lb HFC threshold entirely. Multi-zone VRF systems, light commercial rooftop units, and larger split systems routinely exceed 15 lbs and are now covered where they weren't in 2025. If you serve light commercial accounts, this is the change most likely to affect you directly.

A separate, lighter rule applies below both thresholds: technicians who recover refrigerant from an appliance with a full charge of more than 5 and less than 50 lbs for disposal purposes must keep disposal-specific records, covered in the disposal section below, regardless of refrigerant type. Appliances under 5 lbs (most household refrigerators, window units, and small appliances) fall under a different subpart's small-appliance rules and are outside the scope of this log template.

Technician certification requirements

Under 40 CFR 82.161, anyone who attaches or detaches hoses and gauges to measure appliance pressure, adds or removes refrigerant, or otherwise does anything reasonably expected to release refrigerant from an appliance is a "technician" and must hold EPA Section 608 certification before doing that work. EPA defines four certification types:

Certification tests are administered by EPA-approved certifying organizations and don't expire once earned. Universal certification requires the core exam to be taken as a proctored test — an open-book core exam can't be used to qualify for Universal. Apprentices are exempt from certification while working under the close, continual supervision of a certified technician, but only for up to two years from the date they first register as an apprentice with the Department of Labor's Office of Apprenticeship or a recognized state apprenticeship council. Technicians must keep a copy of their certification proof at their place of business, and refrigerant sellers are barred from selling class I, class II, or non-exempt substitute refrigerant to anyone who isn't a certified technician or doesn't employ one, under 40 CFR 82.154(c).

Leak rate calculator

This uses EPA's annualizing method under 40 CFR 82.152 (and the parallel definition under Part 84 for HFCs): divide the refrigerant added by the appliance's full charge, scale by 365 divided by the days since the last addition (capped at 365), then convert to a percentage. Enter your job's numbers below.

Estimate only, for informational purposes. This is not legal or regulatory advice. Confirm applicability and deadlines against 40 CFR Part 82, Subpart F or 40 CFR Part 84, Subpart C directly, or with your compliance advisor, before relying on this result.

The printable refrigerant log template

The columns below follow 40 CFR 82.157(l)(2)(i)–(viii) for appliances at or above the applicable threshold — the exact fields the regulation requires a servicing record to contain. Print this section (or copy the table into your own spreadsheet) and fill it in at each service call.

Print this log

A blank example is shown above; ten rows are provided per printed sheet. Keep completed logs for at least three years per 40 CFR 82.157(l) and, for HFC appliances, the parallel provision at 40 CFR 84.106.

Disposal chain-of-custody documentation

Disposal recordkeeping runs on its own rules, separate from the servicing log above, and depends on how the appliance leaves your custody.

Appliances dismantled on-site (retail food refrigeration, central residential A/C, chillers, industrial process refrigeration) must simply have refrigerant recovered per the normal servicing requirements before disposal — no separate chain-of-custody paperwork beyond the servicing log.

Appliances that enter the waste stream with refrigerant still inside (window units, household refrigerators and freezers, MVACs) are different. Under 40 CFR 82.155(b)(2), the final person in the disposal chain — typically a scrap metal recycler or landfill operator — must either recover the remaining refrigerant themselves, or obtain a signed statement or supplier contract confirming someone else already did. A signed statement must name the person who recovered the refrigerant, their address, and the date of recovery. EPA explicitly does not accept a sticker as sufficient proof; you need the statement or contract itself, kept on site for three years under § 82.155(c).

Technicians recovering refrigerant for disposal from appliances holding more than 5 and less than 50 lbs — typically field-installed residential split systems — must separately keep, for three years, the company name, appliance location, date of recovery, and refrigerant type for each appliance; the monthly total recovered by refrigerant type; and the quantity transferred for reclamation or destruction, including who it was transferred to and when, under 40 CFR 82.156(a)(3).

Retention, reporting, and what actually goes to EPA

Almost everything on this page stays in your own files. Records must be kept for a minimum of three years in electronic or paper format and produced for EPA only on request or inspection — not filed proactively. The exception is chronic leakers: an appliance with 50 or more pounds of refrigerant that leaks 125% or more of its full charge in a calendar year triggers an actual report to EPA, due March 1 of the following year, describing the efforts made to identify and repair the leak, under 40 CFR 82.157(j). EPA also expects active notification if you're requesting a repair-deadline extension, filing a retrofit or retirement plan, or seeking relief from one, under 40 CFR 82.157(f) through (i). Reports go to 608reports@epa.gov unless they contain confidential business information, in which case they go by mail to the Section 608 Program Manager at EPA's Stratospheric Protection Division.

Leak inspection frequency also depends on size: appliances at or above 500 lbs in the commercial or industrial refrigeration categories need a leak inspection once a quarter until four consecutive clean quarters are demonstrated; smaller covered appliances (50–500 lbs, and all covered comfort cooling appliances regardless of size) need one inspection per calendar year until a clean year is shown, under 40 CFR 82.157(g).

What we could not fully verify

• The exact recordkeeping subsection numbering under 40 CFR Part 84. EPA's own 2026 guidance describes the HFC recordkeeping and reporting requirements at § 84.106 as "similar" to the ODS requirements at § 82.157(l), but we did not locate the full parallel text broken out by paragraph letter the way § 82.157(l) is. Treat the log template above as the right set of fields to capture for HFC appliances too, but confirm the precise citation against § 84.106 directly.
• Whether the transport refrigeration unit (TRU) exemption from the AIM Act leak repair rule is final. As of this writing, EPA has proposed exempting road and intermodal container TRUs from the Part 84 leak repair provisions; a pre-publication Federal Register notice describes this as a proposal, not a final rule. This page does not treat that exemption as settled.
• Non-federal layers. Some states and municipalities (California, and New York's 6 NYCRR Part 494, among others) run their own HFC refrigerant management or reporting rules on top of the federal ones. This page covers the federal Section 608 and AIM Act frameworks only.

Where a primary source (EPA.gov or eCFR) and a secondary source conflict, the primary source wins. If you find an error, tell us through the about page and we will re-verify.

Methodology and sources

This guide is built from EPA's own Section 608 program pages and the current text of 40 CFR Part 82, Subpart F and 40 CFR Part 84, Subpart C on eCFR, read on the date above, plus secondary sources for the 2026 AIM Act effective date and TRU exemption status where the primary Federal Register text was not fully reachable.

Frequently asked questions

What to read next

• OSHA residential trades safety checklist: PPE, ladder, and Hazard Communication requirements for the same field crews.
• Best HVAC software with QuickBooks sync: which field service platforms can track refrigerant logs and sync job costs automatically.

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