IAQ Website of the Month

Mold Remediation Protocols and Clearance- Texas Style

Each month we publish a newsletter titled IAQ Website of the Month.  The excerpt below was originally published in the April 2013 newsletter. 

10 years ago the Texas Legislature passed a mold bill that resulted in unique state laws regulating mold work. Although the regulations only apply to the state of Texas, I think everyone can gain from how things are done in the Lone Star State. For this month’s featured website, I’ll highlight Texas rules that regulate mold remediation protocols and clearance.

In Texas, mold remediation protocols are written by Licensed Mold Assessment Consultants who are independent of the project’s licensed mold remediator. Although there are minimum work practices and procedures for mold remediation that must be in all work plans (e.g. PPE, containment), the consultant’s protocol is what must be followed. Does the protocol say use antimicrobial coatings? If so, they must be used. The protocol is king, and it is a violation to deviate from it. So a licensed remediation contractor must be careful to not only follow the state’s minimum work practices, but also the consultant’s protocol which may have more stringent requirements.

Post remediation assessment and clearance is also described in the state rules. The assessor must perform a “visual, procedural and analytical evaluation.” What kind of samples must be collected? From where? How many? As you might guess, the answer is “as outlined in the remediation protocol.” So the protocol, which is written ahead of time, establishes all the clearance activities to be performed.

Do the state rules say anything about the operation of negative air machines prior to clearance sampling? Check out this quote:
“The Texas Mold Assessment and Remediation Rules (TMARR) require that if walk-in containment is used, negative air pressure must be maintained at all times inside the containment for the duration of a mold remediation project until the project passes clearance (sections 295.321(g) and 295.322(d)). The purpose of this requirement is to prevent the spread of mold spores to areas outside of containment. However, the department recognizes there may be some situations when maintaining negative air pressure may not be advisable or possible at certain stages of the project. In some of these situations, and only when active remediation is not occurring, the use of continuous air scrubbing of the area instead of negative air pressure may be sufficient to prevent contamination of areas outside of the containment.”

You may not agree with everything they do, but remember the slogan, “Don’t Mess with Texas!” To download the entire set of rules visit: Texas Mold Assessment and Remediation Rules (TMARR). To read a quick Q&A about some interesting particulars of the rules, visit: Frequently Asked Questions.

To subscribe to this newsletter click the following link: IAQ Website of the Month.



By Ian Cull

I'm I.A.N. the Indoor Air Nerd. I'm a speaker and consultant on indoor air quality issues. To learn more about me, click "about" at the top of this page.

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