Each person in charge shall carry evidence of his designation as a person in charge when he is engaged in transfer operations unless such evidence is immediately available at the facility.
(Sec. 311(j)(1)(C) of the Federal Water Pollution Control Act (86 Stat. 816, 868); 33 U.S.C. 1161(j)(1)(C); E.O. 11548, 3 CFR, 1966-1970 Comp., p. 949; 49 CFR 1.46(m))
[CGD 71-160R, 37 FR 28253, Dec. 21, 1972]