Notwithstanding any other provision of this part, on and after March 1, 1997, the minimum wage for all industries shall not be less than five dollars ($5.00) per hour; on and after March 1, 1998, the minimum wage for all industries shall not be less than five dollars and seventy-five cents ($5.75) per hour. The Industrial Welfare Commission shall, at a public meeting, adopt minimum wage orders consistent with this section without convening wage boards, which wage orders shall be final and conclusive for all purposes.