Pricing

One-time pricing. No subscription.

TradeQBank costs $49 for one exam bank or $99 for all-access — one-time, no subscription. Each bank includes all questions, practice by content area, timed mock exams, worked explanations with source citations, and free updates. Find a verified wrong answer and that bank is refunded.

Every bank includes the complete question set, untimed practice by content area, timed mock exams in the real blueprint proportions, a worked explanation and source citation on every question, and free updates whenever the bank is re-verified. Start with the free 25-question sample — it's the same player and the same verification standard as the paid banks.

Now open. Checkout is live via Stripe. Your personal access code for the player is delivered by email to the address you check out with.

Choose your bank

Single exam bank

$49 one time
  • One complete bank (Water Treatment Class I: 326 questions)
  • Practice by content area, with instant feedback
  • 110-question timed mock exams, scored at the 70% pass mark
  • Worked explanations and source citations on every question
  • Free updates through each annual re-verification
Buy the Water Treatment Class I bank — $49 Already bought? Enter your code

All-access

$99 one time
  • Every current bank, plus every bank we publish later
  • Includes Wastewater Treatment I, Water Treatment II, and Distribution I as they launch
  • Everything in the single-bank tier, for every exam
  • The right choice if you're climbing the class ladder
Buy All-Access — $99 Already bought? Enter your code

The policy that matters

Find a verified wrong answer, get your money back

Every question in every bank passed two independent derivations of its answer key. If you still find one that's wrong, we want to know — every question in the player has a “Report an error” link.

  • What “verified” means: we re-check the question against the authoritative source it cites. If the source confirms the keyed answer is wrong — not a difference of interpretation or a different textbook convention, but wrong against the citation — the error is verified.
  • What happens then: we fix or retire the question, and we refund the purchase price of the bank it came from. No forms, no fight.
  • Why we can offer this: the Class I bank shipped with full key agreement on all 326 questions across two independent passes. We'd rather refund and fix than defend a bad question.

Prices checked October 2026. This policy covers the correctness of the answer key. It is not a pass guarantee: no practice product can promise a result on the real exam, and we don't.

For utilities and trainers

Buying for a crew?

If you're a utility, district, or training provider preparing several operators, all-access covers each operator's exams across their whole ladder. For team arrangements, email [email protected] and tell us how many operators you're preparing.

FAQ

Common questions

How much does TradeQBank cost?

One exam bank is $49 one-time. All-access is $99 one-time and covers every current and future bank. There is no subscription and no renewal fee.

How do I receive my access code?

Your personal access code is emailed to the address you check out with, seconds after payment completes. Enter it in the Practice & Mock Exam player to unlock your bank.

Is TradeQBank a subscription?

No. Both tiers are one-time payments, and updates from each annual re-verification are included free.

What is the refund policy?

If you find a verified wrong answer — confirmed against the question's cited source — we fix the question and refund that bank's purchase price. The policy covers answer correctness, not exam outcomes; no product can guarantee a pass.

Can I try it before buying?

Yes. A 25-question sample of the Class I bank is free with no account, in the same player with the same explanations and citations as the paid bank.