Part of complying is knowing when the signs are required. Any building that is open to the public must have ADA-compliant signs. They must be posted at each entrance and exit, doors inside stairwells, and any part of the building that pertains to safety somehow. Additionally, they must be present in their correct placement for every permanent room in the building. A permanent room or space is defined as a place with the same function for seven days or more. The exceptions to this are parking lots (aside from accessibility parking spaces), areas not meant for public use, or the exterior of a building, provided it is labeled with the name and address.
