License RequiredSeparation rule applies

Mold licensing in Texas.

Research last verified 2026-06. Confirm current requirements directly with the state before beginning work.

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Inspection and assessment

License required

TDLR Mold Assessment Technician (MAT) or Consultant (MAC) license required.

  • 01Regulated by the Texas Department of Licensing and Regulation (TDLR) under Texas Occupations Code Chapter 1958 and 16 TAC Chapter 78.
  • 02Mold Assessment Technician (MAT — entry level): age 18+, high school diploma or GED, 24-hour approved training course, pass the PSI exam (70% passing score, $60 exam fee), $150/year license fee.
  • 03Mold Assessment Consultant (MAC — independent): same prerequisites plus a 40-hour course and 5 years of documented experience in an allied field (or a relevant degree); $500/year license fee.
  • 04Both tiers require $1,000,000 commercial general liability insurance and affiliation with a TDLR-licensed Texas firm.
  • 05TDLR exam pass rates: ~51% (MAT) and ~45% (MAC) — preparation courses are widely available.
  • 062-year license renewal with 8 continuing education hours required.
  • 07Statutory citation: Texas Occupations Code §§ 1958.001–1958.258; 16 TAC Chapter 78.
License type
TDLR Mold Assessment Technician / Consultant
Training
24 hours
Estimated cost
$150 license + $60 exam + course (~$700–$900 total, MAT path)
Renewal
Every 2 years
Exam
Required

Regulating body: Texas TDLR

Open official source

Mold remediation

License required

TDLR Mold Remediation Contractor (MRC) license required.

  • 01Mold Remediation Contractor (MRC) license required — completely separate from the assessment license.
  • 0240-hour approved training course + PSI exam (100 questions, 70% passing score, $60 fee).
  • 03$450 license fee. $1,000,000 commercial general liability insurance required.
  • 04The licensed firm must maintain a Texas office address.
  • 052-year renewal with 8 continuing education hours.
  • 06Statutory separation rule (§ 1958.155): the assessor and remediator on the same project must be different licensed entities — one company cannot legally perform both on a single job.
  • 07Statutory citation: Texas Occupations Code § 1958.154; 16 TAC §§ 78.56–78.92.
License type
TDLR Mold Remediation Contractor
Training
40 hours
Estimated cost
$450 license + $60 exam + course (~$1,400–$1,600 total)
Renewal
Every 2 years
Exam
Required

Regulating body: Texas TDLR

Open official source

Lab pathway

Air sampling and third-party analysis

License required

Sample collection alone triggers the TDLR license — no third-party lab exemption exists in Texas.

  • 01Texas Occupations Code § 1958.001(C) explicitly defines "mold assessment" as including "the collection or analysis of a mold sample." Placing a spore trap cassette is, by statute, "mold assessment."
  • 02TDLR's official FAQ confirms: "Yes, this activity is considered mold assessment. A real estate inspector must be licensed as a mold assessment technician or consultant to collect air or visible spore samples to determine the presence of mold."
  • 03Sending samples to an AIHA-accredited third-party lab does not create a collection-side exemption — the physical collection step alone requires a TDLR license.
  • 04The minimum credential is the Mold Assessment Technician (MAT): 24-hour course, state exam ($60), $150/year fee. The accredited lab doing the analysis operates under its own AIHA EMLAP accreditation — a separate framework.
  • 05SB 1255 (effective September 1, 2025) repealed the supervised-employee exemption — previously an unlicensed employee working under a licensee could collect samples; that pathway is now closed.
  • 06Enforcement: unlicensed sample collection = Class C violation, $2,000–$5,000 fine, possible suspension of any existing TDLR license.

This summary addresses the spore-trap collection, accredited third-party lab analysis, and report-rendering model for Texas. Verify the current interpretation with the responsible state authority or qualified counsel.

Professional context

Relevant certifications

Voluntary or state-recognized credentials associated with mold work in Texas.

  • IICRC AMRT
  • NORMI CMA
  • NORMI CMR

Before accepting work

Additional notes

  • 01SB 1255 (effective September 1, 2025) repealed the supervised-employee exemption — every individual who physically collects a mold sample must now hold their own MAT or MAC license.
  • 02Texas is one of the most regulated mold states — the same-project separation rule means no single business can legally offer both inspection and remediation on the same job.
  • 03TDLR can impose Class C violations ($2,000–$5,000 fine plus suspension or revocation) for unlicensed mold assessment activity.

After you verify the rule

Keep the requirements visible as the job moves.

Mold Inspector can organize scheduling, field documentation, reports, quotes, and invoices. It does not replace required training, licensing, sampling protocols, legal review, or professional judgment.

See the workflow

Always verify directly with Texas. Requirements may have changed since 2026-06. Confirm the current rule with the responsible regulatory body before beginning mold-related work. This page is a research starting point, not legal advice.