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.
105 CMR, § 460.510