Risk assessment means: 
  (1) An on-site investigation to determine the existence, nature, severity, and location of lead-based paint hazards; and
  (2) The provision of a report by the individual or firm conducting the risk assessment explaining the results of the investigation and options for reducing lead-based paint hazards.

May be required in units affected by Subparts C D G H I J L

24 CFR 35.1320 (b) Risk assessments.
  (1) Risk assessments shall be performed in accordance with methods and standards established either by a State or Indian tribe under a program authorized by EPA, or by EPA at 40 CFR 745.227(d), and paragraph (b)(2) of this section.
  (2) Risk assessors shall use levels defining dust-lead hazards and soil-lead hazards that are no greater than those promulgated by EPA pursuant to section 403 of the Toxic Substances Control Act (15 U.S.C. 2683), or, if such levels are not in effect, the following for dust or soil:
  (i) Dust. A dust-lead hazard shall be a dust-lead level equal to or greater than the applicable loading (area concentration), based on wipe samples, in the following table:

Lead Hazards   Interior Surface Dust: µg/ft2 (mg/m2) Soil Lead: µg/g Evaluation Method Floors Window Sills Window Troughs Play Areas Other Areas Lead Hazard Screen 25 (0.27) 125 (1.4) N/A N/A N/A Risk Assessment 40 (0.43) 250 (2.7) N/A 400 1200* Reevaluation 40 (0.43) 250 (2.7) N/A 400 1200* Clearance 40 (0.43) 250 (2.7) 400 (4.3)* N/A N/A

*Standards for dust-lead and soil-lead hazards as promulgated by EPA effective March 5, 2001.

  (ii) Soil. (A) A soil-lead hazard for play areas frequented by children under 6 years of age shall be bare soil with lead equal to or exceeding 400 micrograms per gram.
  (B) For other areas, soil-lead hazards shall be bare soil that totals more than 9 square feet (0.8 square meters) per property with lead equal to or exceeding 1,200 micrograms per gram

Interpretive Guidance
Inspections and Lead Hazard Reduction