1990—Pub. L. 101–336 amended section generally, substituting provisions relating to closed-captioning of public service announcements for provisions relating to establishment, functions, composition, etc., of Telecommunications Policy Study Commission.

Section effective 60 days after Oct. 30, 1984, except where otherwise expressly provided, see section 9(a) of Pub. L. 98–549, set out as a note under section 521 of this title.