Americans with Disabilities Act (ADA) of 1990 (with amendments issued through 2008)
(B) Final requirement
(i) Review of study and interim requirements
Not later than 1 year after the date of the submission of the study under section 12185 of this title, the Secretary shall issue in an accessible format new regulations to carry out sections 12184(b)(4) and 12182(b)(2)(D)(ii) of this title that require, taking into account the purposes of the study under section 12185 of this title and any recommendations resulting from such study, each private entity which uses an over-the-road bus to provide transportation to individuals to provide accessibility to such bus to individuals with disabilities, including individuals who use wheelchairs.
(iii) Effective period
Subject to section 12185(d) of this title, the regulations issued pursuant to this subparagraph shall take effect
(I) with respect to small providers of transportation (as defined by the Secretary), 3 years after the date of issuance of final regulations under clause (ii); and
(II) with respect to other providers of transportation, 2 years after the date of issuance of such final regulations.