Recovery, Evacuation, and the Disposal Record: How to Retire a System Without Leaving a Compliance Hole

You ran the numbers and made the call. The 12-year-old rack that tripped its threshold twice and drank a third of its charge this year isn't worth another repair — we walked through that math in repair, retrofit, or retire, and if the EPA is involved, the retrofit-or-retirement plan is already on file. The crane is booked. The replacement is on the pad.

Here's what almost nobody covers: the EPA has rules for the last day of a system's life, and the records you create on that day are the ones an inspector reads first. A retired system can't leak, can't trip a threshold, can't become a chronic leaker. But it absolutely can leave a compliance hole — a charge that vanished without a recovery record, an appliance file that got tossed with the equipment, a scrap yard that took the unit on a handshake.

This is the field guide to closing a system out clean.

The Venting Ban Doesn't Care That the System Is Dying

Start with the floor. 40 CFR § 82.154 prohibits knowingly venting refrigerant — ozone-depleting or HFC — during maintenance, service, repair, or disposal. "The unit was headed to the scrapper anyway" has never been a defense, and the venting prohibition names the technician personally, not just the shop. We covered who the EPA actually fines — disposal is one of the places where the liability lands squarely on the person holding the gauges.

So the charge comes out. The only questions are how far down and what paper proves it.

Step One: Pull the Charge to the Legal Level — § 82.156

That last sentence surprises people. The leak-repair half of Section 608 (§ 82.157) was scaled back to ODS-only equipment in 2020, and HFC leak repair moved to Subpart C. The required practices half never moved. Evacuation before disposal binds every refrigerant you touch.

The Table 1 levels, with a recovery machine built on or after November 15, 1993:

(Older recovery machines get looser levels; leaking components you've isolated get evacuated as low as you can without contaminating the charge, never above 0 psig.)

Small appliances — under 5 pounds of charge, factory-sealed — run on a different rule (§ 82.156(b)): recover 90% of the charge when the compressor works, 80% when it doesn't or with an older machine — or evacuate to 4 inches Hg vacuum.

One equipment note that bites shops on decommission jobs: system-dependent recovery equipment can't be used on appliances with more than 15 pounds of charge unless it's permanently attached as a pump-out unit. Big-system retirement is self-contained-machine territory.

The Record Most Techs Don't Know They Owe — § 82.156(a)(3)

Here's the one that fails audits, because it belongs to the technician, not the building owner, and most shops have never written it.

Read that band again: more than 5, less than 50 pounds. That's the condensing unit behind the restaurant, the rooftop package unit, the walk-in you're swapping — the bread and butter of small-contractor decommission work. Every one of those pulls generates a per-appliance record, rolls into a monthly total, and connects to a transfer record showing where the refrigerant physically went.

If your shop's disposal paperwork is "the pounds are on the invoice somewhere," you have the raw material but not the record. The monthly aggregate and the transfer log are separate line items an inspector can ask for by name.

The Owner's Side of the File

The technician's records above are yours. The appliance's own file belongs to the owner — and which rule governs it depends on what's in the pipes.

HFC equipment, 15+ pounds (your Subpart C fleet): the appliance file under § 84.106(l) — every service event, every leak-rate calculation, every inspection — does not die with the machine. The rule keeps the file alive until three years after the appliance is retired. The disposal record showing the final recovery is the last entry, and the folder then sits, untouched and producible, through three more calendar years. We walked the full 13-record inventory in the retention post — retirement is the (l)(1) exception that makes "three years" run from the end of the story, not from each record's date.

ODS equipment, 50+ pounds: § 82.157 still applies — since April 10, 2020, only to appliances with 50 or more pounds of class I or class II refrigerant. Its records paragraph ((l)(2)) requires a service record whenever the appliance is maintained, serviced, repaired, or disposed of, including "the amount and type of refrigerant... in the case of disposal removed from" the appliance — and the servicer provides that record to the owner. Retiring the last R-22 rack in your book? That final record, showing the pounds that came out, is a federal requirement, not a courtesy.

Where the Charge Goes Next

Recovered refrigerant has exactly three legal futures: back into equipment you or the same owner operates, off to a certified reclaimer, or destruction. The § 82.156(a)(3) transfer record — quantity, type, who took it, what date — is the paper trail for options two and three. Between the recovery and the handoff, remember the container rules: disposable cylinders are still legal to own but the 2028 rules are coming, and that reclaimed charge you turned in feeds the market the 15% reclaim rules are building. Your recovery cylinder's chain of custody is worth real money now, not just compliance points.

The Scrap-Yard Handoff — § 82.155

For small appliances, MVACs, and MVAC-like appliances, the rule follows the equipment all the way to the shredder. § 82.155 puts a duty on the final processor — the scrap recycler or landfill taking the final step in disposal: either recover any remaining refrigerant themselves, or verify with a signed statement or contract that the refrigerant was recovered before delivery. The statement needs the name and address of whoever recovered the charge and the date it happened — and a processor can't knowingly accept one that's false. They keep those statements on file for three years.

For a working contractor this cuts two ways. When you drop off a load of old window units and dead fridges, expect to sign — and sign accurately. And when your customer's maintenance crew hauls equipment to scrap themselves, the recovery you performed last week is what makes their statement true. Date it, sign it, keep your copy.

Which Rulebook Covers Your Retirement

One system, potentially three sets of paper:

The retired system is the one piece of equipment that can't earn its way out of trouble anymore. The file you close on decommission day is either complete — or it's the finding.

Retirement is also where the chronic-leaker story ends — and the 125% report doesn't disappear because the system did. If the appliance crossed 125% of its full charge this calendar year and then you retired it, the March 1 report is still due, and the disposal record showing the final recovery is part of the story you'll tell in it.