Title II Technical Assistance Manual

13) Detectable warnings

ADAAG: Required on curb ramps, hazardous vehicular areas, and reflecting pools, but not on doors to hazardous areas. The warnings must be truncated domes (§4.29).

UFAS: "Tactile warnings" (uses different terminology) required only on doors to hazardous areas. Must be a textured surface on the door handle or hardware (§4.29).