
A "lead-safe" certified professional is required for work that disturbs six square feet or more of painted surfaces indoors, or twenty square feet of painted surfaces outdoors. The "lead-safe" certified professional must be physically present at the site where the work is taking place, and proof of certification is required to be presented to the home owner or property owner upon request. "Lead-safe" certification is achieved through demonstrated knowledge of lead-safe procedures, like testing of dust contaminants, and cleaning and disposal of lead-based paint. Certification typically requires an eight-hour EPA training course.
For more information, visit: http://www.epa.gov/lead/pubs/renovation.htm