Title III of the Americans with Disabilities Act defines a "commercial facility" as a non-residential facility whose operations affect commerce (such as a manufacturing operation), but which does not contain a place of public accommodation such as a showroom, retail sales office, or establishment serving food or drink. Commercial facilities do not include rail vehicles or any facility covered by the Fair Housing Act or expressly exempt from the Act. See Department of Justice Guidance and 28 CFR 36.104.