EPA 608 core, type 1, type Questions with correct answers

the clean air act: Correct Answer - 15 November 1990 the technician certification deadline Correct Answer - 14 november 1994 venting of cfc/hcfc refrigerants law took effect Correct Answer - 1 July 1992 study of the ozone began Correct Answer - the 1920's which of the following is the most destructive to the ozone protective layer? Correct Answer - non-water soluble chlorine which of the following is an agreement that states that the United States will not import cfc type refrigerants 1995? Correct Answer - the Montreal protocol what type of technician certificate is required to service all types of refrigeration and air conditioning systems/appliances after 14 November 1994 ? Correct Answer - universal as of 12 august 1993 all types of recovery equipment must be registered with which of the following office or department? Correct Answer - your EPA regional office which of the following refrigerants does the least harm to the ozone? Correct Answer - R-123a