Section 20, Pub. L. 89–249, § 1, Oct. 9, 1965, 79 Stat. 969, related to congressional findings and statement of purpose.

Section 20a, Pub. L. 89–249, § 2, Oct. 9, 1965, 79 Stat. 969, related to authority of Secretary of the Interior to encourage concessioners.

Section 20b, Pub. L. 89–249, § 3, Oct. 9, 1965, 79 Stat. 969, related to protection of concessioner’s investment.

Section 20c, Pub. L. 89–249, § 4, Oct. 9, 1965, 79 Stat. 970, related to new or additional services, preferential rights, and operations by a single concessioner.

Section 20d, Pub. L. 89–249, § 5, Oct. 9, 1965, 79 Stat. 970, related to renewal preference for satisfactory performance, extensions, new contracts, and public notice.

Section 20e, Pub. L. 89–249, § 6, Oct. 9, 1965, 79 Stat. 970, related to concessioner’s possessory interest in concession property, limitations, compensation for taking, and determination of just compensation.

Section 20f, Pub. L. 89–249, § 7, Oct. 9, 1965, 79 Stat. 971, related to use of non-monetary consideration in leases of government property.

Section 20g, Pub. L. 89–249, § 9, Oct. 9, 1965, 79 Stat. 971, related to recordkeeping, audit and examination, and access to books and records.

Sections 20 to 20g were popularly known as the National Park System Concessions Policy Act.