29 CFR § 38.17 - Mobility aids and devices.
(a) Use of wheelchairs and manually-powered mobility aids. A recipient must permit individuals with mobility disabilities to use wheelchairs and manually-powered mobility aids, such as walkers, crutches, canes, braces, or other similar devices designed for use by individuals with mobility disabilities, in any areas open to pedestrian use.
(1) Use of other power-driven mobility devices. A recipient must make reasonable modifications in its policies, practices, or procedures to permit the use of other power-driven mobility devices by individuals with mobility disabilities, unless the recipient can demonstrate that the class of other power-driven mobility devices cannot be operated in accordance with legitimate safety requirements that the recipient has adopted.
(2) Assessment factors. In determining whether a particular other power-driven mobility device can be allowed in a specific facility as a reasonable modification under paragraph (b)(1) of this section, a recipient must consider -
(i) The type, size, weight, dimensions, and speed of the device;
(ii) The facility's volume of pedestrian traffic (which may vary at different times of the day, week, month, or year);
(iii) The facility's design and operational characteristics (e.g., whether its WIOA Title I-financially assisted service, program, or activity is conducted indoors, its square footage, the density and placement of stationary devices, and the availability of storage for the device, if requested by the user);
(v) Whether the use of the other power-driven mobility device creates a substantial risk of serious harm to the immediate environment or natural or cultural resources, or poses a conflict with Federal land management laws.