Mobile-Sierra Doctrine
Definition
A rule that permits a modification of rates charged by an electricity supplier under a contract if a modification is in the public interest because the rates are found to be unjust, unreasonable, or unduly discriminatory. The rule is derived from United Gas Pipe Line Company v. Mobile Gas Service Corporation, 350 U.S. 332 (1956), and Federal Power Commission v. Sierra Pacific Power Company, 350 U.S. 348 (1956).