Evaporator's shot on a 2009 Civic and the customer's just going to scrap the car.

No, don't vent the refrigerant. Federal law (Section 609 of the Clean Air Act) prohibits intentionally releasing R-134a into the atmosphere—even on vehicles going to scrap. Venting can result in significant fines.

Instead, recover the refrigerant properly:

1. Use a recovery machine to pull the refrigerant into a recovery cylinder. Many shops have this equipment, or an HVAC technician can do it.
2. If you don't have recovery equipment, take it to a shop that handles refrigerant recovery. They’ll evacuate the system safely.
3. Once empty, you can cut the lines or leave them—crushers typically don’t care about remaining AC components.

R-134a is a greenhouse gas. Even small releases contribute to environmental harm, and EPA violations carry penalties up to $37,500 per incident.

If the car is already at the crusher and you can’t recover it yourself, contact a mobile AC technician or local shop to handle recovery before destruction. It’s the legal and responsible option.

No. Venting R-134a is a federal crime under Clean Air Act Section 608 and 40 CFR 82.154. It applies to all MVAC systems regardless of vehicle disposition. Fines reach $44,539 per day per violation (2024 adjusted).

You must recover the refrigerant using EPA-certified MVAC recovery equipment (per 40 CFR 82.158) by a Section 609-certified technician. No exceptions for "scrap" vehicles.

Practical path:

1. Recover charge into a DOT-approved recovery cylinder (label it R-134a).
2. If you lack 609 cert or a recovery machine, subcontract a mobile A/C tech (~$50–$100) to recover it before you pull the dash.
3. Document recovery on the repair order (date, tech cert #, lbs recovered). Scrap yards often require proof of refrigerant removal.

Why it matters: R-134a GWP = 1,430. Venting 1 lb ≈ 1,430 lbs CO₂e. EPA pursues violations via tips/audits. Your license and shop liability are on the line.

Bottom line: Recover it legally. Takes 15 minutes with the right gear. Don't risk a federal case for a scrap car.