105 CMR 460.510
Approved Testing Methodology
When used to determine compliance with M.G.L. c. 111, §§ 196(a) or (b) or 197, official reports
under 105 CMR 460.500 shall be based upon methods of measurement specified in 105 CMR
460.000. However, in no case shall a lead inspector, risk assessor or code enforcement lead
determination inspector use the atomic absorption spectrophotometry test, except with prior approval
of the Director.