18 CFR §2.18

1. (a)In general, when a public utility files a phased rate increase, the Commission will determine the appropriate suspension period based on the total increase requested in all phases. If a utility files a rate increase within sixty days after filing another rate increase, the Commission will consider the filings together to be a phased rate increase request.
2. (b)This policy will not be applied if the increase is phased:
   1. (1)To coordinate with new facilities coming on line;
   2. (2)To implement a rate moderation plan;
   3. (3)To avoid price squeeze;
   4. (4)To comply with a settlement approved by the Commission; or
   5. (5)If the utility makes a convincing showing that application of the policy would be harsh and inequitable and that, therefore, good cause has been shown not to apply the policy in the case.
3. (c)This section shall cease to have effect on December 5, 2026, unless the Commission determines that the cessation deadline should be extended to a date not more than 5 years in the future after offering the public an opportunity to provide input on the costs and benefits of this section and considering that input. The Commission will publish a document in the Federal Register announcing its determination and revising or removing this section accordingly.