This regulation establishes an amendment to an exemption from the requirement of a tolerance for residues of the 1-Methylcyclopropene (1-MCP) on fruits and vegetables when applied or used outdoors for pre- harvest treatments. Agrofresh Inc., submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), as amended by the Food Quality Protection Act of 1996 (FQPA), requesting an amendment to the existing 1-MCP exemption from the requirement of a tolerance at 40 CFR 180.1220. This regulation eliminates the need to establish a maximum permissible level for residues of 1-Methylcyclopropene.