(a) As used in this title and chapters 263, 268, 348, 360, 447, 448, 449, 452, 462, 474, 476, 477, 478, 479, 490 and 495, except where otherwise provided, “commissioner” means the Commissioner of Energy and Environmental Protection or his or her designated agent. The Commissioner of Energy and Environmental Protection shall have the authority to designate as his or her agent (1) any deputy commissioner to exercise all or part of the authority, powers and duties of said commissioner in his or her absence, (2) any deputy commissioner or any employee, assistant or agent employed pursuant to § 22a-4 to exercise such authority of the Commissioner of Energy and Environmental Protection as he or she delegates for the administration or enforcement of any applicable statute, regulation, permit or order, (3) the Commissioner of Emergency Services and Public Protection and any local air pollution control official or agency to exercise such authority as the Commissioner of Energy and Environmental Protection delegates for the enforcement of any applicable statute, regulation, order or permit pertaining to air pollution, except the authority to render a final decision, after a hearing, assessing a civil penalty under said § 22a-6b, and (4) any municipal police department the authority to enforce the provisions of chapters 268 and 490.

(b) As used in this chapter, and chapters 263, 268, 348, 360, 440, 446d, 446i, 446k, 447, 448, 449, 452, 462, 474, 476, 477, 478, 479, 490 and 495, except where otherwise provided, “person” means any individual, firm, partnership, association, syndicate, company, trust, corporation, nonstock corporation, limited liability company, municipality, agency or political or administrative subdivision of the state, or other legal entity of any kind.