Mold Remediation Requirements in New Jersey

What Must Be Done

Mold remediation in New Jersey must begin with a professional assessment, followed by containment, removal, and verification. A licensed contractor is required for any work that involves more than 10% of a dwelling unit or when the remediation is for commercial spaces.

Testing and Inspection

State law requires a mold inspection that documents visible growth and moisture sources. The inspector must submit a written report to the homeowner, detailing the extent of contamination and recommended actions.

Containment and Removal

During remediation, the affected area must be sealed with negative air pressure and HEPA‑filtered exhaust. All mold‑laden materials are to be removed, disposed of, or decontaminated according to EPA guidelines. Contractors must use personal protective equipment and follow OSHA respiratory protection standards.

Verification and Certification

After cleanup, a follow‑up air and surface sampling test must confirm mold levels are below 1 colony forming unit per cubic foot. The contractor must provide a final report and a certification of compliance to the homeowner and, if required, to the local health department.

Record Keeping and Reporting

All remediation activities, including material disposal records, must be kept for at least two years. For commercial properties, a written notification to the New Jersey Department of Health is required within 30 days of completion.