A refrigerant distributor sells a 30-pound cylinder of R-410A to a technician. What must the distributor retain as documentation of the sale?
-
A
A copy of the refrigerant's safety data sheet signed by the buyer
-
B
Evidence that the buyer is a certified technician or employs certified technicians
-
C
An EPA purchase order number issued to the buyer
-
D
The buyer's equipment ownership records