Clearance is the evaluation, ideally by someone independent of the remediation contractor, that confirms a completed mold job dried the structure, removed the contamination, and returned the space to normal conditions before it is released back to occupants.
What is clearance?
Clearance is the sign-off at the end of remediation. It combines a visual check (no remaining visible growth, no remaining moisture, work area properly cleaned), moisture verification that materials are dry, and often post-remediation verification sampling to confirm the air is back to a normal indoor-outdoor ratio. The goal is to confirm the space reached Condition 1, normal fungal ecology, not merely that the obvious mold was scraped off. There is no single federal numeric clearance threshold, because the CDC and EPA set no acceptable airborne level, so clearance leans on the visual-and-dryness criteria plus context-based sampling (CDC, About Mold).
Why it matters to a mold inspection
Independence is the heart of defensible clearance: a remediator clearing their own work has an obvious conflict, which is why many protocols and some state rules separate the assessor from the remediator. A clearance that passes a still-wet structure, or skips the moisture check, sets up recurrence. The EPA frames the end goal as growth removed and moisture controlled so it does not return, which is exactly what clearance is supposed to verify (EPA, Mold Remediation in Schools and Commercial Buildings). See clearance letters and post-remediation clearance criteria.
MoldMind captures the clearance criteria, dryness verification, and any post-remediation samples as structured fields, so a clearance decision is documented against what was actually checked.
Sources
- EPA, Mold Remediation in Schools and Commercial Buildings: clearance confirms growth removed and moisture controlled to prevent recurrence.
- CDC, About Mold: no acceptable airborne level set; clearance leans on visual, dryness, and context-based criteria.