Section 12.06 - Notice of General Rate Increases to Customers(1) All common carriers shall provide at least 30 days advance written notice to business and residential customers of any proposed increase to retail rates or charges. Notice shall be provided through a bill insert, bill message, separate mailing, or similar means. Website postings and toll-free recordings are not sufficient.(2) A copy of any Notice of Rate Increase provided to customers shall be included in any proposed tariff filing submitted to the Department.Adopted by Mass Register Issue 1347, eff. 9/8/2017.Amended by Mass Register Issue 1535, eff. 11/22/2024.