§ 1253. Hearing and determination. Not later than twenty days prior to the ensuing fiscal year of each city with a population of one hundred twenty-five thousand or more inhabitants, the commissioner shall provide written notice of the determination of tentative ratios pursuant to this article to the chief executive officer thereof. The notice shall set forth such ratios, identifying the assessment rolls for which the ratios were determined and specifying the time and place where the commissioner or a duly authorized representative thereof will meet to hear complaints presented by a city concerning such ratios. Such notice must be served at least five days before the date specified for the hearing. After hearing any such complaints, the commissioner shall establish final ratios for such rolls in accordance with the provisions of this article. A city is hereby authorized and empowered to waive the hearing with respect to such ratios.