(1) The commission shall be the county board of health in and for the municipality, but in performing the duties and exercising the powers prescribed by law for such boards, the commission shall act by ordinance, resolution, or vote and according to the procedure prescribed by this part and part 12 to be followed when acting as commission of the municipality. It shall not be necessary to the validity of any such action for the commission to declare or for the records thereof to indicate that it is acting in other than its usual capacity.
(2) Regulations affecting the public health additional to those established by general law and for the violation of which penalties are imposed may be prescribed by ordinance and enforced as provided therein.