| TDLR Practice Questions & Study Guide
(2025/2026)
TDLR
Texas Department of Licensing and Regulation
Project records retention period
3 years
Contiguous square feet requiring licensed contractor
25 square feet
Certificate of Mold Damage Remediation (CMDR)
Verifies that a remediation project has met clearance criteria.
Key elements of a remediation work plan
Remediation methods, containment strategy, schedule, and documentation procedures.
Texas Mold Assessment and Remediation Rules (TMARR)
The set of rules under which mold remediation contractors in Texas are regulated.
Critical first step in mold remediation
Identify and correct the source of moisture.
Licensees required to maintain a physical office in Texas
Mold assessment technicians, assessment consultants, remediation contractors, remediation
companies, and mold analysis laboratories.
Minimum commercial general liability insurance required
$1,000,000 per occurrence.
Allowed exam attempts for mold remediation contractor applicant
3 attempts (one initial plus two retakes).
Timeframe to take the state exam after training
, 6 months.
Minimum training hours required for the mold remediation contractor course
40 hours.
Requirement after failing all three exam attempts
Retake the approved training course.
Administering body of the state licensing exam
TDLR's designated exam vendor (typically PSI).
Minimum passing score on the state exam
70% correct.
Publication detailing exam format and licensing requirements
The Candidate Information Bulletin.
Completion of training
A requirement for licensure along with a criminal background check, meeting
education/experience requirements, and proof of insurance.
Criminal background check
A requirement for licensure along with completion of training, meeting education/experience
requirements, and proof of insurance.
Education/experience requirements
A requirement for licensure along with completion of training, a criminal background check, and
proof of insurance.
Proof of insurance
A requirement for licensure along with completion of training, a criminal background check, and
meeting education/experience requirements.
Mold remediation workers licensing in Texas
No; they are registered rather than licensed.
Conflict of interest in mold assessment and remediation
Prohibited to prevent conflicts of interest.