(a) This Part applies to any person who sells, offers for sale, installs, uses, or enters into commerce in the State of New York, any substance in end-uses listed in section 494.4 of this Part.

(b) Substances used in end-uses listed in section 494.5 of this Part are exempt from the prohibitions listed in section 494.4 of this Part.

(c) Except where an existing system is retrofit after the applicable prohibition date, nothing in this regulation requires a person that acquired a product or equipment containing a prohibited substance prior to the applicable date of prohibition listed in section 494.4 of this Part to cease use of that product or equipment. Products or equipment manufactured prior to the applicable prohibition specified in listed in section 494.4 of this Part may be sold, imported, exported, transported, distributed, installed, serviced, and used after the applicable prohibition date.