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Rent Regulations

Cal. Civ. Code § 460.520

Authorized Test Personnel

In Force
Verified 10/26/2026 · Next check 11/2/2026
effective 9/30/2026MassachusettsState Additions

Operative Text

Cal. Civ. Code § 460.520
Tests and measurements under 105 CMR 460.500 shall be performed by lead inspectors, code
           enforcement lead determination inspectors, risk assessors or employees of laboratories with
           appropriate National Lead Laboratory Accreditation Program (NLLAP) certification, or which at
           minimum participate in the appropriate Environmental Lead Proficiency Analytical Testing (ELPAT)
           program.
Source: Legislative text reproduced verbatim
Plain English

Under 105 Mass. Code Regs. 460.000 § 460.520, lead-related tests and measurements conducted pursuant to 105 CMR 460.500 may only be carried out by individuals or laboratory employees who hold specific qualifications. Eligible personnel include certified lead inspectors, code enforcement lead determination inspectors, risk assessors, or laboratory staff with National Lead Laboratory Accreditation Program (NLLAP) certification or participation in the Environmental Lead Proficiency Analytical Testing (ELPAT) program. This provision establishes a credentialing floor intended to ensure that lead testing results are produced by qualified parties.

Written by anthropic/claude-sonnet-4.6 · Reviewed on September 30, 2026

Plain English — not legal advice.

For Property Managers

Property owners and managers who commission lead testing under 105 CMR 460.000 § 460.520 generally ensure that any inspector, risk assessor, or laboratory they engage holds the credentials specified in the regulation — namely NLLAP certification or ELPAT program participation at minimum. Retaining unqualified personnel to conduct lead tests could render those results non-compliant with Massachusetts lead regulations. Compliant operators typically verify credentials before engaging testing personnel and retain documentation of those qualifications.

General guidance for property managers — not legal advice for your specific situation. Consult an attorney for advice on your case.

For Tenants

Section 105 Mass. Code Regs. 460.000 § 460.520 establishes that lead tests affecting your home must be performed by personnel who meet specific professional and laboratory accreditation standards. If you have reason to believe that lead testing in your unit was conducted by unqualified individuals or uncertified laboratories, that concern may be relevant to the validity of the test results. Tenant-rights organizations and local health departments can be resources for understanding how this credentialing requirement intersects with your housing situation.

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.

Effective Timeline

Current
Sep 30, 2026
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References Out

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References In

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Related Rules

§ 191
Reports of lead poisoning; notifications to agencies; records
§ 197
Duty of residential premises owners; interim control measures; abatement or containment of paint, plaster or other accessible structural material containing lead
§ 197C
Child exhibiting dangerous blood lead level after issuance of letters of compliance or interim control; liability

Source Information

Source:https://www.mass.gov/doc/105-cmr-460-lead-poisoning-prevention-and-control/download
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