I can't blame why technicians' knowledge on this is divided. Because the sources are divided.
What a fuster cluck.
If I procure 410A no questions asked and DIY it, did I run foul with the environment police?
EPA approved certification agency claims its more or less the same as R22.
The EPA says you're fine.
Can we vent R410A into the air intentionally?
They both say no...
The same approval agency claims EPA 609 is not required to work on MVAC unless it is for "consideration" meaning you're getting compensated to do the work. Seeing one of them don't really know what they're talking about... I have no idea if this is correct. From what EPA's site says, for pay/not for pay is not mentioned...
Mainstream Engineering, which operates a certification service d/b/a "EPAtest.com". and it claims one must be certified to purchase and handle R410A.
http://www.epatest.com/R410A/manual/manual.jsp(Accessed June 8, 2012)
Q:Are you required to have a license or to be certified to handle and purchase R-410A?
A: You are required to have an EPA Section 608 Type II or Universal certification license.
EPA division of the United States Government.....
http://www.epa.gov/ozone/title6/phas...ctors_faq.html (accessed June 8, 2012)
Q: Are there any restrictions on the purchase of hydrofluorocarbon (HFC) refrigerants?
A: HFCs are not ozone-depleting substances, however they have high global warming potentials (GWPs). At this time the purchase of HFC refrigerants is not restricted. (For example, there is no technician certification requirement for those that purchase HFC refrigerants, such as R-410A or R-134a.)
Q: Is EPA technician certification required to service R-410A systems?
A: No, at this time EPA technician certification (i.e., EPA Section 608 certification) is not required in order to service R-410A systems or other stationary refrigeration and air conditioning systems containing HFCs.