36 CFR Parts 1190 and 1191 ADA and ABA Accessibility Guidelines - Preamble (Discussion of Comments and Changes)

Two parallel grab bars are required on the back wall of bathtubs with seats (607.4.1.1) and without seats (607.4.2.1). The proposed rule, consistent with the original ADAAG, specified that the lower grab bar be located 9 inches absolute above the bathtub rim. In finalizing this rule, the Board has sought to specify dimensions as a range instead of in absolute terms where possible to facilitate compliance without compromising accessibility. With respect to the lower grab bar at bathtubs, the specified mounting height has been changed to a range of 8 inches minimum to 10 inches maximum above the rim of the bathtub.