This regulation establishes a time-limited tolerance for residues of metamitron in or on the raw agricultural commodity (RAC) beet, sugar, roots. This action is in response to EPA's granting of emergency exemptions under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) authorizing use of the pesticide on the crop, sugar beets. This regulation establishes a maximum permissible level for residues of metamitron in or on the RAC beet, sugar, roots. The time-limited tolerance expires on December 31, 2027.