Nova Construction Pro can custom build all types of The Americans with Disabilities Act (ADA) set the building standards for wheelchair ramp specification, code, and handicap access guidelines. These ADA homeowners and businesses are required to meet here in northern Virginia. For most residential applications and business, wheelchair ramps will require a building permit. Commercial businesses, churches, and schools must be in compliance with ADA ramp specifications and ADA requirements for handicapped wheelchair ramp slope access.