Except as otherwise provided in this chapter, nothing in this chapter shall be construed to apply a lesser standard than the standards applied under title V of the Rehabilitation Act of 1973 (29 U.S.C. 790 et seq.) or the regulations issued by Federal agencies pursuant to such title.

Nothing in this chapter shall be construed to invalidate or limit the remedies, rights, and procedures of any Federal law or law of any State or political subdivision of any State or jurisdiction that provides greater or equal protection for the rights of individuals with disabilities than are afforded by this chapter. Nothing in this chapter shall be construed to preclude the prohibition of, or the imposition of restrictions on, smoking in places of employment covered by subchapter I, in transportation covered by subchapter II or III, or in places of public accommodation covered by subchapter III.