49 CFR Parts 37 & 38 - Department of Transportation (DOT) ADA Regulations

(c)

(1) New construction or alterations of buildings or facilities on which construction has begun, or all approvals for final design have been received, before November 29, 2006, are not required to be consistent with the requirements set forth in Appendices B and D to 36 CFR part 1191 and Appendix A to this part, if the construction or alterations comply with the former Appendix A to this part, as codified in the October 1, 2006, edition of the Code of Federal Regulations.

(2) Existing buildings and facilities that are not altered after November 29, 2006, and which comply with the former Appendix A to this part, are not required to be retrofitted to comply with the requirements set forth in Appendices B and D to 36 CFR part 1191 and Appendix A to this part.