Section 1961, Pub. L. 92–513, title III, § 301, Oct. 20, 1972, 86 Stat. 959; Pub. L. 93–492, title III, § 301(a)(2), Oct. 27, 1974, 88 Stat. 1485, authorized Secretary to establish motor vehicle diagnostic inspection demonstration projects.

Section 1962, Pub. L. 92–513, title III, § 302, Oct. 20, 1972, 86 Stat. 960; Pub. L. 93–492, title III, § 301(a)(2), Oct. 27, 1974, 88 Stat. 1485, related to eligibility of States for grants or other assistance for demonstration projects and requirements for such projects.

Section 1963, Pub. L. 92–513, title III, § 303, Oct. 20, 1972, 86 Stat. 961; Pub. L. 93–492, title III, § 301(a)(2), Oct. 27, 1974, 88 Stat. 1485; Pub. L. 94–364, title III, § 301, July 14, 1976, 90 Stat. 981, related to implementation of grants or other assistance to States for demonstration projects.