This is the real problem facing your business and the courts. The revised standards include small stipulations for a wide range of access points such as parking lots, parking spaces, doors, elevators, ramps, hand rails, door knobs and work stations.
Only an expert in ADA compliance, such as an attorney, city inspector, or contractor will have a full understanding of the differences. It is often in the property owner's best interest to reach out for assistance from the ADA or city to bring everything up to date before any of these costly lawsuits have a chance to be filed, for compliance seems to be the only real defense in the current litigious atmosphere.