Section 162, act Aug. 20, 1912, ch. 308, § 9, 37 Stat. 318, authorized rules and regulations as necessary for carrying out the purposes of this chapter.

Section 163, acts Aug. 20, 1912, ch. 308, § 10, 37 Stat. 318; Pub. L. 97–461, § 2, Jan. 12, 1983, 96 Stat. 2523, set forth penalties for violations of provisions of this chapter or regulations promulgated thereunder.

Section 164, act Aug. 20, 1912, ch. 308, § 10, 37 Stat. 318, set forth duty of United States attorneys to prosecute violations of this chapter.

Section 164a, act Aug. 20, 1912, ch. 308, § 10, as added May 1, 1928, ch. 462, 45 Stat. 468, authorized search and seizure of nursery stock and plant products by Department of Agriculture employees.