Conn. Gen. Stat. § 22a-255b: Identification code. Regulations.

(a) On or after January 1, 1990, any plastic bottle sold or offered for sale in this state shall bear an identification code indicating the plastic material that is in the structure of the bottle.

(b) The Commissioner of Energy and Environmental Protection shall establish, by regulations adopted in accordance with chapter 54, standards for the identification code and provisions for providing consumers with an explanation of the code. In adopting such regulations and to promote uniformity of coding and separation of plastic bottles by material for recycling, the commissioner shall consult with manufacturers of plastic bottles, officials with regulatory authority over plastics in other states and representatives of recyclers.

(c) On or after January 1, 1990, and to the extent feasible, each manufacturer of plastic bottles with a capacity of sixteen ounces or more sold or offered for sale in this state shall affix to each plastic bottle an identification code indicating the plastic material that is in the structure of the bottle.