Keeping America's Refineries Act This bill revises the EPA's Risk Management program to exempt a petroleum (e.g., gasoline) refinery that uses a hydrofluoric acid alkylation unit from certain hazard assessment requirements. Petroleum refineries use the acid during the gasoline production process. Hydrofluoric acid is hazardous and corrosive. If it is accidently released, it can form a toxic vapor cloud. Currently, petroleum refineries are required to include in a hazard assessment an evaluation of safer technology and alternative risk management measures for a hydrofluoric acid alkylation unit. This bill eliminates that requirement if the petroleum refinery (1) has obtained a construction permit or operating permit under the program, or (2) demonstrates that it will conform to the most recent version of American Petroleum Institute Recommended Practice 751. This practice provides guidance on the safe operation of such a unit.