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

1013.2 Clear Ground Space

This section requires a clear ground space 4 feet wide minimum to be provided on all usable sides of tent pads and tent platforms to enable individuals who use wheeled mobility devices to set up and take down the tent. The usable sides of tent pads and tent platforms are the sides that can be used when setting up and taking down a tent. All sides of tent pads and tent platforms are generally usable, unless a tent pad or tent platform is located next to a natural feature such as a rock or tree that renders a side not usable. This section also requires the surface of the clear ground space to be firm and stable and to allow the use of tent stakes or other tent securement devices.