(a) The County Council is, and may act as, the County Board of Health. (b) When meeting as the Board of Health, the County Council has all the powers delegated to a local board of health under State and County law. (c) The County Council, meeting as the Board of Health, may adopt any regulation which a local board of health is authorized to adopt. Before it adopts a regulation, the Board must hold a public hearing after giving reasonable notice, as specified in the Council Rules of Procedure, to each municipality in the County and the public.