Sheet 45Exam fact
Is the STSC exam hard?
Nobody outside BCSP can put a number on how hard the STSC is, because BCSP publishes no pass rate and no passing score. What it does publish is enough to judge for yourself: 100 questions, two hours, closed book, and a blueprint written as tasks a supervisor carries out.
- ExamSTSC
- SourceBCSP, A Complete Guide to Safety Certification, 12th ed. (June 2026)
- CheckedOct 12, 2026
BCSP publishes no pass rate and no passing score for the STSC, so its difficulty can't be quoted as a number. The exam is 100 multiple-choice items in two hours, closed book (as of October 2026).
Source: BCSP, A Complete Guide to Safety Certification, 12th ed. (June 2026) · checked Oct 12, 2026
Years away from a test desk
A timed exam after a long stretch away from school can feel heavier than its content. The content is the work you already supervise: fall protection, trenches, cranes, heat, fire extinguishers, incident reports. The unfamiliar part is the format, and a format can be rehearsed.
What BCSP publishes about the exam
- 100 multiple-choice items with one correct answer each, two hours, closed book (question count and format, BCSP Complete Guide, as of October 2026).
- Compensatory scoring: a strong domain can make up for a weaker one, and only correct answers count. The STSC passing score itself is not published.
- No penalty for a wrong answer, so every item deserves an answer.
- Every item is backed by a published reference, from a list of 21 titles BCSP posts beside the blueprint.
The STSC7 blueprint is written as "Knowledge of" and "Skill to" statements, and the skill statements name field tasks: conduct a safety inspection or audit, judge whether a worker is fit for duty, put corrective actions in place after an incident investigation. Prepare to apply a rule to a situation on site, as well as to recall it.
Construction numbers and their general-industry look-alikes
| Topic | Construction, 29 CFR 1926 | General industry, 29 CFR 1910 |
|---|---|---|
| Fall protection trigger | 6 feet (1926.501) | 4 feet (1910.28) |
| Travel to a 2A extinguisher | 100 feet or less (1926.150) | 75 feet (1910.157) |
| Noise figure to know | 90 dBA PEL over 8 hours, 5 dB exchange (1926.52) | 85 dBA hearing-conservation action level (1910.95) |
| Fire watch after hot work | A sufficient period after the work (1926.352) | At least 30 minutes (1910.252) |
These pairs come from writing and auditing our own practice set and are our observation, not BCSP data. On a construction site the 1926 figure applies; a 1910 rule counts there only where 1926 adopts it, as with respirators (1910.134 through 1926.103). The noise limits and hot work fire watch sheets take two of these pairs apart in full.
Getting ready for it
Read the qualifier before the options. In our practice cards, a stem asking what to do FIRST wants the immediate step, such as stopping the work, while one asking what is MOST effective wants the control higher on the hierarchy of controls.
Learn the construction numbers as construction numbers. The fall protection trigger heights sheet is a good first check: 6 feet under 29 CFR 1926.501, 10 feet on scaffolds, 15 feet in steel erection.
Then put a clock on it. The STSC study plan lays the five domains over 4, 8 or 12 weeks, heaviest first, and ends with a full timed run.
Next sheets
Study in the gaps of a site day
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