Sitonce
Country: US
Show exams for United States Hong Kong
Sign in
Study plans and method

Studying the business and law book

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

The business and law material is behind Procurement and Contracting, which is 31 of 125 questions, and much of General Requirements. It is the reference to know best and the one most contractors know least.

The one book where the return on effort is highest, and the one field contractors are most inclined to skip.

Why it dominates

Procurement and Contracting is 31 of 125 questions, the largest category by a wide margin. Much of General Requirements draws on the same material.

That is more than a quarter of the exam sitting in one body of knowledge.

Field experience does not cover it

A contractor who has built for twenty years has usually signed contracts drafted by somebody else and never read a lien statute. This is the category where experience helps least, which is exactly why it is worth the most study time.

How to work it

Not by reading it cover to cover. Work questions, find the answers, tab where you land, and the structure of the book becomes familiar through use.

Where a concept resists that treatment, read the section properly. Lien rights, contract formation and change order procedure usually need one proper read each.

The topics worth a proper read

  • Contract types and what each shifts to whom
  • Change orders, and directives that are not change orders
  • Lien rights and the sequence of deadlines
  • Bonds, and how they differ from insurance
  • Payment terms, retainage and prompt payment
  • Business entity types and liability
  • Employment classification and payroll obligations

Tab definitions, not just figures

This category turns on defined terms more than on numbers. A question distinguishing a bond from insurance is answered by a definition, and the definition is findable if it is tabbed. Read those properly.

Common questions

How important is the business and law material?

It is behind Procurement and Contracting at 31 of 125 questions, plus much of General Requirements.

Does field experience cover it?

Rarely. Most contractors have signed contracts drafted by others and never read a lien statute.

How should I study it?

Work questions and tab where you land, with a proper read on lien rights, contract formation and change orders.

What should I tab?

Defined terms as much as figures, since this category turns on definitions.

What topics deserve a full read?

Contract types, change orders, lien deadlines, bonds versus insurance, retainage, entity types and employment classification.