accessibility standards for Federal outdoor developed areas 31 Section F216.2 of the ABA Standards requires exterior signs that identify spaces by name to comply with the technical requirements for visual char- acters in section 703.5 of the ABA Standards, including the provisions for contrast of the characters and their background, and character size and style. Consequently, if a trail information sign identifies the name of the trail, the name of the trail must comply with the technical requirements for visual characters in section 703.5 of the ABA Standards. Tactile characters, Braille, and the International Symbol of Accessibility are not required on trail information signs. Section F205 of the ABA Standards requires operable parts in accessible spaces to comply with the technical requirements for operable parts in sec- tion 309 of the ABA Standards, including the provisions for clear ground space, reach ranges, and operation. Consequently, if bins or holders for materials, such as maps, brochures, or fee envelopes, are provided at trail- heads, a clear ground space at least 30 by 48 inches must be provided at the bins or holders. The bins or holders must be located a minimum of 15 inches and a maximum of 48 inches above the ground surface. If a latch or lid is pro- vided, it must be operable using one hand without tightly grasping, pinching, or twisting the wrist. Outdoor Constructed Features at Trailheads [F2473 1 and 1011] When outdoor constructed features, such as benches, picnic tables, or trash and recycling receptacles, are provided at trailheads, at least 20 percent, but no less than one, of each type of element provided must comply with the applicable technical requirements for the element. The technical require- ments for outdoor constructed features are discussed in the section of this guide on outdoor constructed features. Toilet and bathing facilities, parking facilities, and drinking fountains must comply with the applicable sections of the ABA Standards.