Section 659 - Reconsideration of wage orders and regulations1. By wage board. At any time after a minimum wage order has been in effect for six months or more, the commissioner, on his own motion or on a petition of fifty or more residents of the state engaged in or affected by the occupation or occupations to which an order is applicable, may reconvene the same wage board or appoint a new wage board to recommend whether or not the minimum wage and regulations prescribed by such order should be modified, and the provisions of section six hundred fifty-five through six hundred fifty-seven shall thereafter apply.2. By commissioner. The commissioner, without referral to the wage board, may, at any time after public hearing, by order propose such modifications of or additions to any regulations as he may deem appropriate to effectuate the purposes of this article. Notice of hearing and promulgation of any such order shall be published in accordance with the provisions contained in section six hundred fifty-six. Such order shall be effective thirty days after such publication and section six hundred fifty-seven shall thereafter apply.