Section 431, act June 7, 1924, ch. 316, § 1, 43 Stat. 604 ; Pub. L. 89–753, title II, § 211(a) , Nov. 3, 1966 , 80 Stat. 1252 , related to the short title for this subchapter. Section 432, act June 7, 1924, ch. 316, § 2, 43 Stat. 604 ; Pub. L. 89–753, title II, § 211(a) , Nov. 3, 1966 , 80 Stat. 1252 , defined “oil,” “person”, “coastal navigable waters of the United States”, and “Secretary”. Section 433, act June 7, 1924, ch. 316, § 3, 43 Stat. 605 ; Pub. L. 89–753, title II, § 211(a) , Nov. 3, 1966 , 80 Stat. 1253 , related to prohibition against discharge of oil generally. Section 434, act June 7, 1924, ch. 316, § 4, 43 Stat. 605 ; Pub. L. 89–753, title II, § 211(a) , Nov. 3, 1966 , 80 Stat. 1253 , related to penalties for violation of oil discharge prohibition and liability of vessel. Section 435, act June 7, 1924, ch. 316, § 5, 43 Stat. 605 ; 1946 Reorg. Plan No. 3, §§ 101–104, eff. July 16, 1946 , 11 F.R. 7875 , 60 Stat. 1097 ; Pub. L. 89–753, title II, § 211(a) , Nov. 3, 1966 , 80 Stat. 1254 , related to revocation or suspension of licenses of officers of offending vessels. Section 436, act June 7, 1924, ch. 316, § 6, as added Pub. L. 89–753, title II, § 211(a) , Nov. 3, 1966 , 80 Stat. 1254 , related to authorization of use of certain personnel in enforcement of this subchapter and arrest of offenders. Section 437, act June 7, 1924, ch. 316, § 7, 43 Stat. 606 ; Pub. L. 89–753, title II, § 211(a) , Nov. 3, 1966 , 80 Stat. 1254 , related to affect of this subchapter on preexisting laws for preservation and protection of navigable waters. See section 1251 et seq. of this title .