For the operative date of this subchapter, referred to in subsecs. (e), (f)(4), (g), (h), (k), (m), (r), and (t), see section 509 of Pub. L. 91–173, set out as an Effective Date note under section 801 of this title.
This chapter, referred to in subsec. (i), was in the original “this Act”, meaning Pub. L. 91–173,
“Secretary of Health and Human Services” substituted for “Secretary of Health, Education, and Welfare” in subsec. (m) pursuant to section 509(b) of Pub. L. 96–88 which is classified to section 3508(b) of Title 20, Education.
Section operative 90 days after