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changing freon

Trevorus said:
Also, on that new of a car, it will be r-134a refridgerant. R-12 (freon) requires a license to handle. Don't just vent freon either. It's a federal offense, IIRC. R-134a doesn't have this restriction, though it's really not good to vent that stuff, either.

If it's a 2000 Civic it's running R 134, Freon pretty much disappeared in 95, I believe. Freon does require a license to sell and BUY, You have to be a certified HVAC mechanic to purchase or possess the stuff.
 
I have the refrigerant chart somewhere out in the shed along with the freon can. Not that I need it anymore. Time for a r134 chart.

You don't have to be a certified mechanic, my Dad buys it
from time to time, and when they ask, he takes out his registered P.E. stamp. He then loudly proclaims that 'Professional Engineering' registration (his field was ammonia refrigeration) supercedes all 'trade certifications'. I love that guy.