36 CFR Part 1191 ABA Accessibility Guidelines, Outdoor Developed Areas - Preamble

1014.2.1 Transfer Access

Where transfer access is provided, this section requires a clear ground space 36 inches minimum by 48 inches minimum positioned for a parallel approach to be provided at the entrance to the camp shelter, and one full unobstructed side of the clear ground space to adjoin or overlap an outdoor recreation access route or trail, as applicable, or another clear ground space. The surface of the clear ground space is required to be firm and stable, and to slope not steeper than 1:48 in any direction. Where the surface is other than asphalt, concrete, or boards, slopes not steeper than 1:20 are permitted when necessary for drainage. The camp shelter floor at the entrance is required to be 19 inches high maximum measured from the clear ground space. These requirements enable individuals who use wheeled mobility devices to transfer from their mobility device to the shelter floor