57-39.4-30. (329) Effective date for rate changes

57-39.4-30. (329) Effective date for rate changes Each member state shall provide that the effective date of rate changes for services covering a period starting before and ending after the statutory effective date shall be as follows: 1. For a rate increase, the new rate shall apply to the first billing period starting on or after the effective date. 2. For a rate decrease, the new rate shall apply to bills rendered on or after the effective date.