(a) All boards and commissions which under this chapter are a part of or are attached to the Agency shall be advisory only, except as hereinafter provided, and the powers and duties of the boards and commissions, including administrative, policy making, and regulatory functions, shall vest in and be exercised by the Secretary of the Agency.

(b) Notwithstanding subsection (a) of this section, the Board of Health shall retain and exercise all powers and functions given to the Board by law of quasi-judicial nature, including the power to conduct hearings, to adjudicate controversies, and to issue and enforce orders, in the manner and to the extent provided by law. Boards of registration attached to this Agency shall retain and exercise all existing authority with respect to licensing and maintenance of the standards of the persons registered. (Added 1969, No. 272 (Adj. Sess.), § 3, eff. Jan. 10, 1971.)