…to the agency's registration. [ 36 FR 7790 , Apr. 24, 1971, as amended at 36 FR 18731 , Sept. 21, 1971; 37 FR 15920 , Aug. 8, 1972. Redesignated at 38 FR 26609 , Sept. 24, 1973, and amended at 50 FR 40523 , Oct. 4, 1985; 51 FR 5320 , Feb. 13, 1986; 51 FR 26154 , July 21, 1986; 58…