Texas Registered Sanitarian Examination

TDLR administers the Registered Sanitarian exam through our third-party vendor, PSI, at their many locations throughout Texas.

Exam Eligibility

Upon TDLR approval of eligibility, PSI will send you an email confirmation with instructions for scheduling an appointment to take the examination. (If an email address was not provided to TDLR at the time of application, you will receive a postcard via U.S. Mail from PSI with scheduling information).

Scheduling an Exam

If you are eligible for examination, then you can contact PSI via the internet 24 hours a day at https://test-takers.psiexams.com/tdlnrp or by phone at (833) 333-4741 to schedule your exam date.

Eligible candidates may schedule an exam time that is convenient to them. A Candidate Information Bulletin (PDF) including the exam sites and scheduling information is posted on TDLR's web site.

Requests for Special Accommodations

Every reasonable accommodation will be made in meeting a candidate’s needs. Applicants with disabilities or those who would otherwise have difficulty taking the exam should make a request for alternative arrangements with PSI. Details for requesting special accommodations can be found in the Candidate Information Bulletin (PDF).

Fee Schedule

The examination cost can be found in the Candidate Information Bulletin (PDF).

Exam Requirements

Information regarding the examination and exam requirements can be found in the Candidate Information Bulletin (PDF). You are not required to bring anything to the exam site other than your identification.

Requirements for Identification

A list of acceptable forms of identification can be found in the Candidate Information Bulletin (PDF). If your name or address has changed, you must notify TDLR in writing. We will not allow anyone other than the person listed in our database to test with PSI.

Study Materials

The Candidate Information Bulletin (PDF) will include the number of questions on the exam, the time allotted to complete the exam, and a list of reference materials.

Cancellations or Late Arrivals

Details regarding PSI’s cancellation policy can be found in the Candidate Information Bulletin (PDF).

Test Results

Your grade will be handed to you at the test center by the PSI proctor after you have completed the test. PSI generates a score report which provides a diagnostic of the candidate’s strengths and weaknesses.

The passing score is 70% or higher.

Sanitarian Exam Pass/Fail Rates

Fiscal Year 2022 (September 2021 - August 2022)

Sanitarian Exams Pass Fail Total Pass Rate No Show
TOTAL 113 138 262 45.0% 11


Fiscal Year 2020 (September 2019 - August 2020)

Sanitarian Exams Pass Fail Total Pass Rate
TOTAL 59 33 92 64.1%


Retaking the Exam

You may schedule a retake with PSI, within 24-48 hours of your failed exam.

Your license application is valid for one year and you may retake the exam until your application expires. When your application expires, you will need to submit a new application before you can retake the exam.