The Office of Information and Regulatory Affairs (OIRA) is a sub-agency within the Office of Management and Budget(OMB). OMB is responsible for executive oversight of the federal regulatory process.
Executive Order 12866 describes OIRA's role in rulemaking, and sets requirements that agencies must follow when involved in rulemaking, including cost/benefit analyses and alternatives to regulation.
Reports of OIRA reviews are available to the public.