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Study plans and method

How to tab your books

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

Tab by category weight, working from the biggest first. Tabs must reach provisions rather than chapters, and every tab should be one you have used at least once in practice.

If you do one thing to prepare for this exam, do this. It is worth more than any course.

Work in weight order

Procurement and Contracting is 31 questions and General Requirements is 25. The business and law reference and the OSHA standards get tabbed first and most finely.

Electrical is 3 questions. Tab it last and lightly.

How fine

Fine enough to land on a provision, not a chapter. A tab reading "Fall protection" puts you in twenty pages. A tab reading "Guardrail specs 1926.502(b)" puts you on the answer.

That means a lot of tabs. Several hundred across the set is normal.

A tab you have never used is decoration

The point of tabbing is not a colourful book. It is a retrieval system you have rehearsed. Every tab should correspond to something you have actually looked up while practicing, or you will not remember it exists under pressure.

A method that works

  1. Work practice questions with the book open and untabbed
  2. Every time you look something up, tab where you landed
  3. Label the tab with what you were looking for, in your words
  4. Repeat until new questions stop generating new tabs
  5. Then work timed sets to rehearse using them

That builds an index shaped by the questions rather than by the book's own structure, which is the difference between a useful index and a table of contents on sticky paper.

Color by book

One color per reference, so you reach for the right book without reading anything. With two dozen books on a table, that saves seconds on every lookup.

Check the rules

Permanent index tabs and highlighting are permitted. Anything beyond that, verify against the current bulletin before exam day rather than at the door.

Common questions

How should I tab my NASCLA books?

By category weight, biggest first, with tabs fine enough to land on a provision rather than a chapter.

How many tabs is normal?

Several hundred across the whole set. A tab per provision you have actually needed while practicing.

Which books get tabbed first?

The business and law reference and the OSHA standards, since those categories carry 56 of the 115 scored questions.

How do I decide where to tab?

Work practice questions untabbed and tab wherever you land. That shapes the index by the questions rather than by the book.

Is color coding worth it?

Yes. One color per book means reaching for the right one without reading anything.