A prior section 3033, Pub. L. 89–73, title IV, § 403, as added Pub. L. 93–29, title IV, § 401, May 3, 1973, 87 Stat. 46; amended Pub. L. 94–135, title I, § 109, Nov. 28, 1975, 89 Stat. 717; Pub. L. 95–478, title I, § 104(a)(3), Oct. 18, 1978, 92 Stat. 1537, related to task of attracting qualified persons to field of aging, prior to the general amendment of this subchapter by Pub. L. 97–115.

A prior section 431 of Pub. L. 89–73 was classified to section 3037 of this title, prior to the general amendment of this subchapter by Pub. L. 106–501.

Another prior section 431 of Pub. L. 89–73 was classified to section 3035g of this title, prior to the general amendment of this subchapter by Pub. L. 97–115.

Another prior section 431 of Pub. L. 89–73 was renumbered section 451, and was classified to section 3037 of this title, prior to the general amendment of this subchapter by Pub. L. 97–115.