Mold Remediation Scope by Area

EPA / NYC DOHMH remediation level, containment, PPE tier, and clearance from affected square footage.

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Formula and source

Deterministic lookup: EPA 402-K-01-001 area bands (small < 10 ft2, medium 10-100, large > 100); NYC DOHMH levels (I < 10, II 10-30, III 30-100, IV > 100, V on any HVAC involvement). Derived controls: containment (limited / full) by band and porous material; PPE tier by band; independent assessor when area > 100, HVAC, or vulnerable occupant; clearance for medium/large, HVAC, or vulnerable occupant.

EPA 402-K-01-001 (Mold Remediation in Schools and Commercial Buildings) area bands; NYC DOHMH Guidelines on Assessment and Remediation of Fungi in Indoor Environments levels; IICRC S520-2024 by name.

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