Energy: other; utility filing a rate case earlier than 3 years after the utility’s last rate case: prohibit. Amends sec. 6a of 1939 PA 3 (MCL 460.6a).

SB 768 prohibits gas, electric, and steam utilities from filing a new rate case (requesting rate increases) sooner than three years after their previous rate case. This amendment to Michigan's Public Utilities Act (MCL 460.6a) directly affects all utilities regulated by the Michigan Public Service Commission when seeking rate adjustments. The key mechanism adds a mandatory three-year waiting period between full rate case filings, preventing utilities from repeatedly seeking rate changes too frequently. It does not change existing processes for partial rate relief or other rate adjustments. The bill aims to stabilize utility rate-setting timelines without altering current hearing requirements or refund procedures.