This bill, known as the "Regulation Decimation Act," introduces a significant new requirement for federal agencies when issuing regulations. It mandates that an agency cannot issue any new rule unless it first repeals at least ten existing rules that are, to the extent practicable, related to the new regulation. This measure aims to systematically reduce the overall volume of federal regulations. For new major rules , the requirements are more stringent: agencies must not only repeal ten related rules, but the cost of the new major rule must also be less than or equal to the cost of the repealed regulations. This crucial cost reduction must be officially certified by the Administrator of the Office of Information and Regulatory Affairs before the major rule can be issued. These provisions are designed to ensure that new major regulations do not add to the existing regulatory burden. The Act applies to rules that impose costs or responsibilities on non-governmental entities or state and local governments, but specifically excludes internal agency policies or rules being revised to reduce existing burdens. Furthermore, within 90 days of the Act's enactment, each agency head must submit a comprehensive report to Congress and the Office of Management and Budget, identifying any rules deemed costly, ineffective, duplicative, or outdated. The President is also required to provide a report to Congress every five years detailing the number of rules in effect and the progress made in reducing them.