EPA Section 608 Refrigerant Compliance for Multifamily: What Changed in 2026 and What Operators Actually Have to Track

START HEREEPA 608 multifamily requirements, in plain language

If you run apartments and someone just asked whether you’re EPA 608 compliant, here is the short answer: any refrigerant-containing equipment on your property — rooftop units, chillers, split systems, walk-in coolers, ice machines — falls under a federal rule that says refrigerant may never be knowingly vented, only certified technicians may service it, and systems over the charge threshold need a leak-rate calculation every time refrigerant is added, with repairs and follow-up leak inspections when that rate crosses the trigger, and records kept for at least three years.

For a multifamily operator, that translates into four practical obligations: know which of your equipment holds 15 lb or more of HFC refrigerant (50 lb or more for legacy ozone-depleting refrigerants such as R-22), calculate the leak rate every time refrigerant is added, repair any leak above the leak-rate trigger within 30 days of that addition, and keep a service record you can hand an inspector. Nearly every EPA 608 penalty against a housing operator traces back to the fourth one — the work was done, but the record proving it wasn’t retrievable.

The rest of this guide walks each obligation in detail, including what changed on January 1, 2026 under the AIM Act leak-repair rule.

THE PROGRAMWhat is EPA Section 608?

Section 608 of the Clean Air Act establishes the federal program governing refrigerant management in stationary equipment. In plain English: it’s the rulebook for how the refrigerant in your HVAC chillers, rooftop units, walk-in coolers, ice machines, and other refrigerant-containing equipment has to be handled — from purchase through service and leak repair through end-of-life recovery.

The program covers four operational areas:

• Venting prohibition. Knowingly releasing refrigerant during service, maintenance, repair, or disposal is illegal — for every refrigerant type, in every appliance, regardless of size.
• Technician certification. Anyone who services or disposes of regulated refrigerant-containing equipment must hold a Section 608 certification (Type I, II, III, or Universal). Refrigerant purchases require certification at the point of sale.
• Leak repair and recordkeeping. For systems above the applicable charge threshold, owners and operators must calculate a leak rate each time refrigerant is added, repair leaks above the leak-rate trigger within 30 days of that addition, inspect for leaks on the schedule an exceedance triggers, and retain service records for three years minimum.
• Recovery and disposal. All refrigerant must be recovered before equipment disposal, using EPA-certified recovery equipment operated by a certified technician.

For most multifamily operators, the operational pain is in the second, third, and fourth areas — tracking which equipment is over threshold, catching a leak-rate exceedance and the inspections it triggers, documenting service events properly, and managing disposal of decommissioned equipment without venting violations.

WHAT CHANGEDWhat changed January 1, 2026 (the AIM Act leak-repair rule)

The American Innovation and Manufacturing (AIM) Act, enacted in 2020, gave EPA new authority to regulate hydrofluorocarbons (HFCs) — the refrigerant class that replaced ozone-depleting substances in most equipment built after the early 2000s. EPA used its authority under subsection (h) of the Act to issue the Emissions Reduction and Reclamation (ER&R) rule, published in October 2024 and codified at 40 CFR Part 84 Subpart C. Its leak-repair requirements took effect January 1, 2026.

The rule made three material changes that operators of multifamily properties need to understand:

1. HFC equipment of 15 lb or more is now covered. The legacy Section 608 leak-repair rule (the Title VI ozone-depleting substance program, 40 CFR 82.157) applies only to appliances holding 50 pounds or more of an ozone-depleting refrigerant such as R-22, and it does not apply to equipment that runs only on an HFC. The AIM Act rule applies to any appliance holding 15 pounds or more of an HFC (or an HFC substitute with a global warming potential above 53). Many systems that sat outside the old rule are now inside the new one.
2. The same leak-rate triggers now apply to HFC equipment. The triggers themselves are not new: 10% of full charge per year for comfort cooling, 20% for commercial refrigeration, 30% for industrial process refrigeration. The 10% comfort-cooling trigger has applied to ozone-depleting refrigerants since January 1, 2019. What is new is that an HFC comfort-cooling system of 15 pounds or more that leaks past 10% now starts the repair clock: 30 days from the refrigerant addition that shows the exceedance to repair the leak or develop a retrofit-or-retire plan.
3. Automatic leak detection (ALD) is now mandatory for commercial and industrial process refrigeration systems with 1,500 lb or more (systems installed on or after Jan 1, 2026: at installation; systems installed from 2017 through 2025: by Jan 1, 2027). Typical multifamily comfort-cooling systems are not covered.

The combination of these three changes meaningfully expands the universe of equipment subject to active compliance monitoring. According to industry estimates published when the rule was finalized, federal regulators expanded refrigerant oversight by roughly 70% — not because more refrigerant is being used, but because the threshold dropped to where smaller systems are now in scope.

The AIM Act also drives the HFC phasedown itself: 85% reduction in HFC production and consumption by 2036. R-410A — the dominant HFC refrigerant in residential and light commercial HVAC for two decades — is giving way to A2L refrigerants (R-32, R-454B) in new equipment. In May 2026 EPA finalized a rule that dropped the January 1, 2026 installation deadline for residential and light-commercial systems manufactured or imported before 2025, so existing R-410A equipment can still be installed, but the phasedown still drives the shift. Multifamily operators with R-410A equipment should expect rising refrigerant costs and tighter supply through the end of the decade.

PENALTY MATHWhat improper tracking actually costs

There’s a reason refrigerant compliance is the thing that keeps multifamily owners and asset managers up at night. Unlike fire-code violations — where the local AHJ usually issues a correction notice and gives you time to fix it — EPA 608 enforcement is federal, the penalty math is unforgiving, and the most common trigger isn’t a release event. It’s missing or incomplete records.

Three violation categories drive the overwhelming majority of EPA 608 enforcement actions: certification gaps (uncertified people purchasing or handling refrigerant), venting infractions (refrigerant released during service or disposal), and — most relevant for property owners — recordkeeping failures. Missing service logs, incomplete manifold gauge readings, absent recovery-machine calibration records, lost technician certification copies. These are low-hanging fruit for inspectors because they’re documentary — either the record exists or it doesn’t. There’s no “we did the work but lost the paperwork” defense that holds up.

In the Gristedes case, repairs ran late, and part of what EPA cited was missing proof: verification tests that were never run. On multifamily portfolios the more common version is a records failure on its own — the maintenance happens, the contractor invoices, the work gets done. But the records live in contractor email threads, scattered cloud folders, and the heads of property managers who’ve since moved to other roles. When EPA shows up, the work doesn’t exist in any form an inspector can audit.

Beyond direct EPA fines, refrigerant non-compliance shows up in places operators don’t always anticipate: property casualty insurers ask about refrigerant compliance during renewal underwriting on properties with significant central-plant systems, and buyers ask for refrigerant records during acquisition due diligence. Missing or incomplete records can become a price reduction, an escrow holdback, or a deal-breaker depending on the buyer’s sophistication. A documented gap is a permanent feature of the property’s record — it follows the asset.

SCOPEWho’s actually covered in multifamily, and who isn’t

This is where most multifamily operators get the rule wrong. The reflex is to think: “we have apartment AC units, so we’re probably covered.” The actual answer is more nuanced.

What’s exempt: The AIM Act rule exempts the residential and light commercial air conditioning and heat pump subsector, which EPA describes as equipment that cools individual rooms, single-family homes, and small commercial buildings. That covers most apartment-unit HVAC — single-room mini-splits, packaged terminal air conditioners (PTACs), in-unit heat pumps, and similar equipment. Chillers and certain variable refrigerant flow (VRF) systems are outside the exemption. The legacy rule for ozone-depleting refrigerants has no subsector exemption, but its 50-pound floor already leaves in-unit equipment out. A 4-pound unit in apartment 203 is not in scope under either rule.

What’s still in scope, even on a property dominated by exempt equipment:

• Chillers in central-plant garden-style or mixed-use buildings — almost always above the 15-pound threshold, often above 50.
• Large rooftop package units serving common areas, clubhouses, leasing offices, fitness centers — commonly 15-40 lb refrigerant charge. Whether a given rooftop unit or multi-zone mini-split falls inside the exempt subsector depends on EPA’s definition, so treat anything with a charge of 15 lb or more as in scope until you have confirmed otherwise.
• Walk-in coolers and freezers in on-site amenities (resident lounges with kitchens, coffee bars, leasing-office snack rooms, on-site cafes).
• Ice machines in common amenities — many fall under the small-appliance category, but commercial ice machines above the threshold are covered.
• Commercial laundry refrigeration in properties with on-site laundry plants.
• Pool dehumidification systems at indoor pool amenities.
• Server-room cooling in properties with on-site IT closets serving the property management operation.

Even on equipment that is exempt from leak repair and inspection (in-unit residential AC), other Section 608 requirements still apply — the venting prohibition, the technician certification requirement, the recovery-before-disposal requirement, and the prohibition on selling refrigerant to non-certified individuals. An apartment unit AC being serviced still has to be serviced by a certified tech, and the refrigerant still has to be recovered when the unit reaches end-of-life. The exemption is from the proactive leak management regime, not from the entire Section 608 program.

The practical implication: a typical 200-unit multifamily property might have 200+ exempt in-unit AC systems and 4-8 covered systems (one or two rooftop units, the leasing-office chiller, a walk-in cooler in the resident lounge, the fitness-center HVAC). The exempt systems get the most operational attention because they break the most often; the covered systems get the least attention because they break the least often — and that’s exactly where compliance gaps form.

CADENCESLeak inspection cadences (triggered by a leak, set by charge and appliance type)

Unlike NFPA 25, EPA leak inspections are not a flat calendar interval. They are triggered: every time refrigerant is added to a covered appliance, the owner calculates its leak rate, and only an appliance that exceeds its trigger goes onto a leak-inspection schedule, which then depends on the appliance type and charge. The table below summarizes the requirements; always verify against the current text of 40 CFR 84.106 (HFC equipment), 40 CFR 82.157 (ozone-depleting refrigerants), and any state overlays.

Where an automatic leak detection system is installed, it can be used in place of the periodic leak inspections. The 30-day repair clock is where most operators get tripped up. The clock starts with the refrigerant addition whose leak-rate calculation shows the appliance over its trigger — not when it’s convenient to schedule the contractor, not when the next maintenance window opens. The top-off starts the clock.

RECORDSRecordkeeping requirements

For every appliance subject to the leak repair rule (15+ lb HFC under the new rule; 50+ lb ODS under the legacy rule), owners and operators must keep:

• Service records. Date of service, type of service, quantity of refrigerant added, refrigerant type, and the certified technician’s certification number. An invoice or other documentation showing the amount and type of refrigerant added counts.
• Leak inspection records. Date of inspection, method (electronic leak detector, ultrasonic, soap solution, etc.), areas inspected, findings (no leaks / leaks found / leak rate calculation), and technician identification.
• Leak repair records. Date of repair, what was repaired, the verification test confirming the repair held, and the date of verification. If a retrofit-or-retire plan was developed instead of repair, the plan itself plus completion documentation.
• Charge records. Full charge of the appliance, any changes to the full charge value, date of change, and method used to determine the change.
• Disposal records (equipment holding more than 5 and less than 50 lb). These are kept for three years by the technician who recovers the refrigerant for disposal: company name, location of the appliance, date of recovery, refrigerant type, and where the recovered refrigerant was sent for reclamation or destruction (40 CFR 82.156(a)(3)). Ask for a copy for your equipment file.
• ALD records (where ALD is installed). Calibration date, test results, alarm events, response actions taken.

Retention period: All records under the Section 608 program must be retained for a minimum of three years and kept available at the place of business. State environmental agencies may require longer — California in particular under CARB’s Refrigerant Management Program (RMP) requires extended retention and additional reporting. When records are required at multiple levels of government, retain to the longest applicable requirement. To start a paper record, our free refrigerant service and leak log has an equipment list and a reusable service log.

Reports to EPA. Repair-extension requests, retrofit-or-retire requests, and the yearly report for an appliance that leaked 125% or more of its full charge each identify the facility, its address, and the owner or operator, along with the appliance’s leak rate (40 CFR 84.106(f), (i) and (m) for HFC equipment; 40 CFR 82.157 for ozone-depleting refrigerants).

FAILURE MODESCommon EPA 608 compliance failures in multifamily

ENFORCEMENTHow EPA enforcement actually happens (and how to prepare)

Unlike NFPA 25, where the “Authority Having Jurisdiction” is typically your local fire marshal who knows your building, the enforcement authority for EPA 608 is the U.S. Environmental Protection Agency — federal, regional, and increasingly active. Penalty math is covered in the section above; this section is about how enforcement actions actually start and what you can do to prepare.

Three pathways drive most enforcement actions:

• Routine inspection of larger refrigerant users in a region — central-plant garden-style portfolios, mixed-use buildings with chillers, properties with significant commercial refrigeration footprints.
• Complaint-driven investigation — from a fired contractor, a former employee, a disgruntled vendor, a neighboring property, or an environmental advocacy group. This is the surprise pathway. Most operators don’t realize how often EPA inspections start with a phone call from someone with a grievance.
• Due-diligence-driven disclosure — during property sale, refinance, or insurance renewal. Buyers and lenders increasingly ask for refrigerant records as part of environmental due diligence. A gap surfaced during a transaction often becomes an EPA referral if the buyer’s counsel believes the gap suggests broader non-compliance.

State overlays expand the threat surface. California’s CARB Refrigerant Management Program is the most aggressive, but New York, Massachusetts, Washington, and others have parallel programs at various stages of development. Operating across multiple states means tracking multiple overlapping regimes — not just complying with the federal floor. State environmental agencies can also refer cases to EPA for federal action, and vice versa.

How to prepare for an EPA inspection:

1. Produce the refrigerant inventory within minutes. Every covered system, charge size, refrigerant type, last service date, last leak inspection date, ALD status (where applicable). If you can’t produce this, the inspector has already concluded compliance is weak.
2. Be ready to show the 3-year service history for each covered system. Organized chronologically by appliance. Vendor records consolidated, not scattered across contractor portals.
3. Have leak inspection records and any leak event documentation organized separately. Inspectors want to see whether leaks were discovered, whether the 30-day clock was met, and whether repair verification was documented.
4. Disposal records for any equipment retired in the inspection window. Recovery technician, recovery date, quantity recovered, final destination.
5. Be honest about gaps. Trying to obscure a missing record is worse than acknowledging it and showing the corrective action you’ve put in place. EPA penalty calculations consider good-faith effort.

THE SYSTEMBuilding a refrigerant management system

Refrigerant compliance fails for the same reason fire-protection compliance fails: cadences that live past the planning horizon, records that exist only in contractor systems, and operational ownership that gets diluted across maintenance, property management, and outside vendors. The fix isn’t harder work; it’s a system that doesn’t rely on memory.

Whatever system you use, paper or software, look for these:

• Asset inventory first. Every refrigerant-containing system on the property, with charge size, refrigerant type, appliance type, and threshold status (under 15 lb, 15 lb or more, 500 lb or more). Without this, nothing else works.
• Leak-rate tracking. The system calculates the leak rate at every refrigerant addition and knows which equipment is exempt. When an appliance crosses its trigger, it schedules the annual or quarterly follow-up inspections — and it surfaces what’s due before it’s overdue.
• Contractor record capture. Service records, leak inspection records, and repair verification records uploaded against the equipment asset — not just emailed to whoever scheduled the work.
• 30-day repair countdown timer. The moment a refrigerant addition puts an appliance over its trigger, the system starts a visible 30-day countdown. No more “we lost track of when the clock started.”
• Disposal workflow. When equipment is retired, the system enforces the recovery-before-disposal sequence and captures recovery technician, quantity, and final destination.
• AIM Act reclassification. HFC systems of 15 lb or more that came into the rule on January 1, 2026 are flagged for the new compliance regime.

FAQFrequently asked questions

Does EPA Section 608 apply to apartment-unit HVAC?

Most in-unit HVAC equipment (single-room mini-splits, packaged terminal AC, residential heat pumps) falls under the residential and light commercial AC and heat pump subsector, which the AIM Act rule exempts from its leak repair and inspection requirements. The legacy rule for ozone-depleting refrigerants has no such exemption, but its 50-pound floor already leaves in-unit equipment out. Chillers and certain VRF systems are not in the exempt subsector. However, the venting prohibition, technician certification requirement, and end-of-life recovery requirement still apply to ALL equipment regardless of size. And the property almost always has OTHER refrigerant-containing equipment that IS covered. Chillers, large rooftop package units, walk-in coolers, ice machines in common amenities. The exemption applies to a specific subset of equipment, not to the property as a whole.

What changed under the AIM Act effective January 1, 2026?

Three big changes. First, leak repair and recordkeeping now cover equipment holding 15 pounds or more of an HFC refrigerant; the legacy rule covers only ozone-depleting refrigerants, at 50 pounds or more. Second, HFC equipment now carries the same leak-rate triggers: 10% of full charge per year for comfort cooling, 20% for commercial refrigeration, and 30% for industrial process refrigeration (the 10% comfort-cooling trigger has applied to ozone-depleting refrigerants since 2019). Third, automatic leak detection (ALD) systems are now mandatory for commercial and industrial process refrigeration systems with 1,500 pounds or more of refrigerant: at installation for systems installed on or after January 1, 2026, and by January 1, 2027 for systems installed from 2017 through 2025. The practical impact: many multifamily properties now have covered equipment they did not have a year ago, and most operators don't know which systems crossed the threshold.

What's the leak repair timeline under EPA 608?

When a refrigerant addition shows a covered appliance leaking above its trigger (10% comfort cooling, 20% commercial refrigeration, 30% industrial process), the owner or operator has 30 days from that addition (120 days if an industrial process shutdown is required) to either repair the leak OR develop a retrofit-or-retire plan. If a retrofit/retire plan is developed, the actions under that plan must be completed within one year. Each repair needs an initial and a follow-up verification test. All repair records and verification records must be retained.

How long do I have to retain refrigerant records?

All records under the Section 608 program must be retained for a minimum of three years and kept available at your place of business. This includes service records (date and type of service, quantity of refrigerant added, refrigerant type), leak inspection records, leak repair verification records, and disposal records. Some state environmental agencies require longer retention. California in particular has more aggressive recordkeeping requirements under CARB. When in doubt, retain longer.

Who at my property can purchase refrigerant?

Only EPA 608-certified technicians (Type I, II, III, or Universal) can purchase ozone-depleting and HFC refrigerants. Type I covers small appliances (5 pounds or less), Type II covers high-pressure systems (most residential and commercial AC), Type III covers low-pressure systems (large chillers), and Universal covers all three. The technician's certification card must be presented at the point of sale, and the supplier must maintain records of the sale including the technician's certification number. Federal certification does not expire.

What happens if EPA finds non-compliance?

Federal civil penalties under the Clean Air Act can reach $124,426 per violation per day in a federal civil action (about $59,000 per day on EPA's administrative track) under current inflation-adjusted limits. EPA aggregates. Each appliance, each missing record, each missed inspection cycle can count separately. Typical settlements for documented multi-system violations land in the $25,000 to $400,000+ range. In 2024 a New York City supermarket chain, Gristedes, agreed to a $400,000 civil penalty and about $13.5 million in repairs for the pattern that shows up on multifamily properties: leaks not repaired on time and repairs never verified. California's CARB program adds state-level penalties up to $500,000 annually for missing or incorrect emissions reports. In egregious cases EPA pursues criminal prosecution under the Clean Air Act; in 2016 a man who vented refrigerant while stripping stolen air-conditioning units was sentenced to 54 months in federal prison. Beyond direct fines, non-compliance triggers heightened EPA scrutiny on future inspections, affects insurance carrier risk assessments, and creates exposure during property sale due-diligence reviews. Recordkeeping failures, not release events, drive the majority of enforcement actions.

Which EPA 608 certification do apartment maintenance techs need?

It depends on the equipment they open. Type I covers factory-sealed small appliances with 5 pounds of refrigerant or less, like refrigerators, window units and many PTACs. Type II covers high-pressure systems, which includes most split-system air conditioners and heat pumps in apartments. Type III covers low-pressure systems such as some chillers. Universal covers all three. Most multifamily techs who work on unit HVAC need Type II or Universal, and you should keep a copy of each tech's card on file.

KEEP READINGRelated reading

• NFPA 25 Fire Pump Compliance for Multifamily — A Field Guide for Operators
• Best Apartment Maintenance Software 2026 — An Honest Comparison
• FixGrid Intelligence — AI features plus designed workflow logic
• Grid Apogee — Compliance Vault for multifamily operators

About the author: George Herlth is the founder of FixGrid and a 20-year multifamily maintenance professional with a Facility Management Professional (FMP) credential through IFMA. He spent two decades managing refrigerant inventory, scheduling HVAC compliance work, and surviving environmental compliance reviews across multifamily portfolios before building FixGrid. Connect on LinkedIn.

Last updated: October 10, 2026. This guide reflects the AIM Act Emissions Reduction and Reclamation rule (40 CFR Part 84 Subpart C, HFC equipment) and EPA Section 608 requirements under 40 CFR Part 82 Subpart F (ozone-depleting refrigerants) as in effect on January 1, 2026. Specific obligations may vary by appliance type, refrigerant type, charge size, and state environmental agency overlay. Always verify against the current rule text and your state’s requirements. This article does not constitute legal advice, engineering consultation, or environmental compliance guidance.