3206.1 In general, an indoor mold assessment professional should be consulted when assessing the extent of a moisture problem, indoor mold growth, and performing other related activities.

3206.2 The following guidelines are applicable to non-licensed individuals performing mold assessment on areas potentially affected by less than ten square feet (10 ft.²) of indoor mold growth; unless exempt by § 3201, a non-licensed individual shall not perform mold assessment on ten square feet (10 ft.²) or more of indoor mold growth in an affected area.

3206.3 Prior to taking any steps to clean, scrape, remove, paint over, or otherwise remediate any indoor mold growth, a visual inspection should be performed that assesses the following:

(a) The extent of water damage, indoor mold growth, and affected building materials;

(b) Crawl spaces, attics, behind wallboards, carpet backing and padding, wallpaper, baseboards, insulation, and other materials that are suspected of hiding indoor mold growth;

(c) Ventilation systems for damp conditions and indoor mold growth on system components, like filters, insulations, and coils or fins; and

(d) Certain materials that are susceptible to indoor mold growth when damp, including ceiling tiles, paper-covered gypsum wallboard (drywall), structural wood, and other cellulose-containing surfaces.

3206.4 If assessment work might disturb indoor mold growth, personal protective equipment, like gloves and respiratory protection, should be worn.

3206.5 If indoor mold growth or water-damaged materials are visually identified, remediation shall be conducted in accordance with the guidance document published by the Department.

3206.6 If ten or more square feet (10 ft.²) of indoor mold growth in an affected area is visually identified, the property owner, unless if exempt by § 3201.4, shall hire an indoor mold assessment professional who is licensed pursuant to § 3202 to conduct an indoor mold assessment.

SOURCE: Final Rulemaking published at 63 DCR 6098 (April 22, 2016).

Environment