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The examination, start to finish

The one-year approval window

Compiled by the Sitonce editorial team from the PSI Candidate Information Bulletin, NASCLA's own published material and the federal standards named belowUpdated 2 min readFacts verified 4 September 2026
The short answer

An approved NASCLA application lasts 12 months and allows up to three attempts. Booking late in the window means a failed attempt may leave no time for another inside it.

A structure worth understanding before you apply rather than after.

What the window is

Twelve months from the date your application was approved. Inside it you may take the examination up to three times.

Each attempt costs the USD 130 PSI fee. The USD 65 application fee covers the window rather than the attempt.

The planning mistake

Applying, then spending eight months preparing, then booking in month ten.

Fail that attempt and you have two months for a retake, including the time to work out what went wrong and fix it. Fail again and the window closes with an attempt unused and a new application fee due. Apply late, sit early.

Prepare first, then apply

Nothing requires you to apply before you start studying. Buy the books, tab them, work practice questions, and apply when you are close. The window then covers the period when you are actually sitting.

A sensible sequence

StageTiming
Buy and tab the booksBefore applying
Work the categories and practice questionsBefore applying
Apply to NASCLAWhen a practice mock is close to 81
Book with PSITwo to four weeks after approval
Retake if neededInside the same window

If the window expires

You apply again and pay the application fee again. Nothing carries over except your knowledge.

If you pass on the first attempt

The remaining attempts are simply unused. There is no refund and no need for one.

Common questions

How long does NASCLA approval last?

12 months from approval, with up to three attempts inside that window.

What happens if the window expires?

You reapply and pay the application fee again. Nothing carries over.

When should I apply?

When you are close to ready, not at the start of studying. Nothing requires applying before you prepare.

Does each attempt cost extra?

Yes, USD 130 to PSI per attempt. The application fee covers the window.

What if I pass first time?

The remaining attempts are unused. There is no refund and none is needed.