Cal. Civ. Code § 460.510
Approved Testing Methodology
Operative Text
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.Section 460.510 of 105 Mass. Code Regs. 460.000 establishes which testing methods are acceptable when official lead inspection reports are used to determine compliance with Massachusetts lead paint statutes. Reports filed under 105 CMR 460.500 must rely on measurement methods specified within the 105 CMR 460.000 framework. Notably, the atomic absorption spectrophotometry (AAS) test is prohibited for use by lead inspectors, risk assessors, and code enforcement lead determination inspectors unless the Director has granted prior approval.
Plain English — not legal advice.
Under § 460.510, property owners relying on official lead inspection reports to demonstrate compliance with Massachusetts lead paint law should confirm that any inspector or risk assessor they engage is using an approved testing methodology as defined in 105 CMR 460.000. Compliant operators typically verify that their hired professionals are not using atomic absorption spectrophotometry unless Director approval has been obtained beforehand. Retaining documentation of the inspector's credentials and the specific methodology used can support a clear compliance record.
General guidance for property managers — not legal advice for your specific situation. Consult an attorney for advice on your case.
Section 460.510 of 105 Mass. Code Regs. 460.000 protects tenants by requiring that lead inspection reports used in compliance determinations be based on officially approved measurement methods. If a tenant has reason to believe that a lead determination was conducted using an unapproved method—such as atomic absorption spectrophotometry without Director approval—that concern can be raised with local code enforcement authorities or the Massachusetts Department of Public Health. Tenant-rights organizations familiar with lead paint law can help explain what options may be available when the validity of an inspection report is in question.
General guidance for tenants — not legal advice for your specific situation. Consult a tenant-rights organization or attorney for advice on your case.
Generated September 30, 2026 — auto-generated, not yet human-reviewed. See /transparency for methodology.
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