A 12-week NASCLA study plan for working contractors

The numbers behind the plan

PSI's Candidate Information Bulletin (updated 7 Jul 2026) lists 115 scored questions in twelve subject areas, plus 10 unscored pretest questions, in 330 minutes. The exam is open book with 24 listed references you bring yourself.

Twelve weeks at six hours is 72 hours. Check: 6 x 12 = 72, and 72 / 12 = 6.

A weekly rhythm that fits a job

• Two weeknight sessions of 75 minutes. One for reading and tabbing, one for practice questions.
• One weekend block of three and a half hours. Longer practice sets and lookup drills in your own books.

That is 2.5 + 3.5 = 6 hours. If a week falls apart, protect the weekend block and drop a weeknight, not the other way round. The long block is where lookup speed gets built.

The 12 weeks

Weeks 2 to 11 are ten content weeks. Each row shows how many of the 115 questions that week covers.

The question counts add to the full exam: 31 + 25 + 15 + 10 + 11 + 14 + 9 = 115. Check another way: the two big areas are 56, and the other ten are 115 - 56 = 59, which is 15 + 10 + 11 + 14 + 9 = 59.

Procurement and Contracting gets three of the ten content weeks, 30% of the time for 27% of the questions, because it is the largest area and the one with the most arithmetic. General Requirements gets two. If business and contracts are your daily work and your baseline shows it, give week 4 to whichever area scored lowest instead.

Week 1: books before study

The reference books guide lists all 24 titles and the editions the bulletin allows. Order them first, since used copies take time to arrive. Then:

1. Tab each book's table of contents and index with permanent tabs.
2. Use one tab color per subject area, matched to the exam outline.
3. Read the bulletin's rules on books: highlighting, underlining and indexing are allowed; writing in the books and loose or attached papers are not; Post-it notes must come out before the exam.

Weeks 2 to 11: the same loop every week

1. Map before you read. Skim the table of contents and index of that week's books. You are learning where things are.
2. Read the parts you do not use at work. A superintendent can skim jobsite safety and slow down on financial statements. An estimator may need the reverse.
3. Work the arithmetic by hand. Markup and margin, retainage, quantities, crew hours, float and payroll do not need a book once you know the method. Use a silent, nonprinting, non-programmable calculator like the one you will bring.
4. Practice, then label every miss. Did not know it, could not find it, or misread it. Each label has a different fix: study, tab, or slow down.
5. Time your lookups. If a lookup takes more than about three minutes, add a tab or learn the index term you should have used.

Week 11: the first timed set

Sit 50 mixed questions in 120 minutes with your tabbed books on the table. That is 2.4 minutes per question, the pace that leaves a reserve on exam day. Check: 50 x 2.4 = 120, and 120 / 50 = 2.4.

Week 12: full pace, then the gaps

Sit the longest timed set you can, ideally a full-length one, at the time of day your exam is booked. Then compare each area's score with its share of the 115 and put the last sessions into the heaviest area where you lost the most. The week before the exam covers the final days.

Book the date with a retake in mind

Once NASCLA accepts your application you have one year to test, with at most three attempts. A twelve-week plan started soon after acceptance leaves most of the year for a retake if you need one. Do not leave the first attempt to the last month.

Start week 1 today

Take the free 10-question check and record your score by subject area. It needs no signup and explains every answer. When you want lessons for all twelve areas and four timed 115-question practice exams on the 330-minute clock, see the plans. The eight-week study guide is the faster version of this plan.

Sources

• PSI Candidate Information Bulletin 1458, content outline, reference list and exam rules, updated 7 Jul 2026. Retrieved 5 Nov 2026.

FAQ

Is 12 weeks enough for the NASCLA exam?

It depends on your starting point. Twelve weeks at six hours is 72 hours. Use your baseline by subject area to decide whether to add weeks or move them.

Should I study the small subject areas?

Yes. The nine areas with 3 to 6 questions each total 44 questions. Study them for lookup speed rather than depth.

Can I study from e-books?

Plan on printed copies. Phones, tablets and other electronic devices go into storage at the test center.