Refers to the ability of a person using a wheelchair to obtain access to either business establishments or housing. Depending upon the date of first occupancy of housing, such housing may have been required to have been constructed in such a fashion that wheelchair users are guaranteed access (typically by means of ramps and widened doorways). Businesses and other organizations which qualify as “public accommodations” may be required to provide wheelchair access, where readily achievable, even when the facility was not required at time of construction to be accessible. Construction guidelines for such access are found in the ADA Accessibility Guidelines (for public accommodations) and the Fair Housing Act Accessibility Guidelines (for housing).