; or (B) a single-family dwelling unit in a structure that contains more than 1 separate residential dwelling unit, and in which each such unit is used or occupied, or intended to be used or occupied, in whole or in part, as the home or residence of one or more persons. (12) Residential real property The term residential real property means real property on which there is situated one or more residential dwellings used or occupied, or intended to be used or occupied, in whole or in part, as the home or residence of one or more persons. (13) Revolving loan fund The term revolving loan fund means a self-replenishing financing mechanism that utilizes debt payments as capital to issue new loans. (14) Risk assessment The term risk assessment means an on-site investigation to determine and report the existence, nature, severity, and location of lead-based paint hazards in the residential dwellings, including— (A) information gathering regarding the age and history of the housing and occupancy by children under age 6; (B) visual inspection; (C) limited wipe sampling or other environmental sampling techniques; (D) other activity as may be appropriate; and (E) provision of a report explaining the results of the investigation.