Answered
Is the TCEQ Class D exam open book?
No. The TCEQ Class D water and wastewater exams are closed-book. Books and notes are not allowed; only Municipal Solid Waste Supervisor exams are open book. You may use a non-programmable calculator and the scratch paper the testing center provides.
Last reviewed 2026-08-03
What closed-book means here
You cannot bring or reference the operator manual, printed rules, or notes. Everything you need has to be in your head on exam day, which is why practicing the exact scope matters.
What you are allowed
A non-programmable calculator and monitored scratch paper the center supplies. Nothing else in the authorized-aids list.
Common questions
- Can I bring the operator manual?
- No. The exam is closed-book.
- Can I use a calculator?
- Yes, a non-programmable one.
- Which TCEQ exams are open book?
- Only Municipal Solid Waste Supervisor exams.