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

What 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 inspect for leaks, repair leaks above the leak-rate threshold within 30 days, 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, scheduling leak inspections on the right cadence, documenting service events properly, and managing disposal of decommissioned equipment without venting violations.

What changed January 1, 2026 (the AIM Act Subsection H 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 that authority to issue the HFC Leak Repair and Management Rule under AIM Act Subsection H, which took effect January 1, 2026.

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

1. Threshold dropped from 50 lb to 15 lb for HFC systems. The old leak repair and recordkeeping rule (under the Title VI ozone-depleting substance program) had a 50-pound trigger. The AIM Act rule applies to any appliance containing 15 pounds or more of regulated HFC refrigerant. Many systems that were below the old threshold are now above the new one.
2. Comfort cooling leak rate trigger dropped from 15% to 10%. If a comfort cooling system above the 15-pound threshold loses more than 10% of its full charge in a calendar year, the leak repair clock starts — 30 days to repair or develop a retrofit-or-retire plan. The old comfort cooling threshold was 15%; the new threshold catches leaks that previously would not have triggered the rule.
3. Automatic leak detection (ALD) is now mandatory for HFC systems with 15+ lb charge. New systems must have ALD installed by January 1, 2026. Existing systems must have ALD installed by January 1, 2027. ALD systems must be tested and calibrated on a documented schedule, and detection events must be logged and acted upon.

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 being phased out, replaced by A2L refrigerants (R-32, R-454B) starting with new equipment manufactured in 2025 and later. Multifamily operators with R-410A inventory should expect rising acquisition costs and tighter supply through the end of the decade.

What 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.

The grocery chain in the $400K example almost certainly did most of the underlying maintenance work. What they failed at was capturing it in the right form, retaining it for the right period, and producing it when EPA asked. The same dynamic plays out across multifamily portfolios — 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.

Who’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 residential and light commercial air conditioning and heat pumps subsector is specifically exempted from the leak repair and inspection requirements under both the old ODP rule and the new AIM Act rule. That covers most apartment-unit HVAC — mini-splits, packaged terminal air conditioners (PTACs), in-unit heat pumps, and similar equipment. A 4-pound unit in apartment 203 is not in scope for the 15-pound threshold.

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.
• 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.

Leak inspection cadences (charge-tier driven, not calendar-flat)

Unlike NFPA 25, EPA 608 inspection cadences depend on the charge size of the individual appliance, not on a flat calendar interval applied to all equipment. The table below summarizes the typical requirements; always verify against current 40 CFR Part 82 Subpart F text and any state overlays.

The 30-day repair clock is where most operators get tripped up. The clock starts the moment a leak above the rate trigger is discovered — not when it’s convenient to schedule the contractor, not when the next maintenance window opens. Discovery starts the clock.

Recordkeeping requirements

For every appliance subject to the leak repair rule (15+ lb HFC under the new rule; 50+ lb ODP 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 (for equipment containing 5–50 lb). Recovery date, technician, quantity recovered, refrigerant type, appliance identification, and final destination of the recovered refrigerant.
• 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.

Site-level reporting (50+ lb). For appliances with 50 or more pounds of refrigerant, reports submitted to EPA must identify the location of appliances within a site, name the owner and operator, show the address of the site where the appliance is located, and state the full charge of the appliance.

Common EPA 608 compliance failures in multifamily

How 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.

Building 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.

• Asset inventory first. Every refrigerant-containing system on the property, with charge size, refrigerant type, and threshold status (under 15, 15-50, 50-500, 500+). Without this, nothing else works.
• Threshold-driven cadence enforcement. The system knows which equipment requires annual leak inspections, which requires quarterly, and which is exempt — 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 leak above threshold is logged, the system starts a visible 30-day countdown. No more “we lost track of when the leak was discovered.”
• 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. Systems in the 15-50 lb HFC range that crossed into the rule on January 1, 2026 are flagged for the new compliance regime, with ALD installation deadlines tracked (new: Jan 1, 2026; existing: Jan 1, 2027).

Related 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 Facilities 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: May 25, 2026. This guide reflects EPA Section 608 requirements under 40 CFR Part 82 Subpart F and the AIM Act Subsection H HFC Leak Repair and Management Rule 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.