In April 2008, EPA promulgated regulations governing renovations in target housing (i.e., any housing constructed prior to 1978) and child-occupied facilities. The rule requires contractors to become certified by EPA, to notify owners and occupants before commencing renovations that disturb lead-based paint, and to follow certain safe work practices in conducting such work. The certification and safe work requirements went into effect on April 22, 2010. The current regulations require cleaning verification at the end of a renovation project, but do not require any testing.