Here is the Rule:
EPA's Lead Renovation, Repair and Painting Rule (RRP Rule) requires that Contractors performing renovation, repair, and painting projects that disturb lead-based paint in homes built before 1978 have their firm certified by EPA (or an EPA authorized state), use certified renovators who are trained by EPA-approved training providers and follow lead-safe work practices.
If the home the borrower is buying or refinancing was built prior to 1978 then your contractor in most cases needs to have his lead paint certificate. Here are a few exceptions.
When does my contractor NOT need a Lead Paint Certificate?