1. About the RBQ 3.1 contractor licence exam

The RBQ sub-category 3.1 exam is the theoretical examination administered by the Régie du bâtiment du Québec for candidates seeking to act as qualified representative (répondant) for a contractor licence covering structural concrete work — cast-in-place and precast. The licence also authorizes the work of sub-category 3.2 (Annex III), plus similar or related construction work.

The exam is offered in French and English in multiple-choice format, lasts 3 hours, and the passing grade is 60%. It is built around four official modules covering structural concepts, the regulatory framework, plans and specifications, and the standards for executing concrete work — from foundation footings through above-ground structures.

2. Exam structure at a glance

The RBQ does not publish a percentage weighting per module for this licence. By content volume, Module 4 dominates with 71 skill statements — nearly 70% of the exam content. EC 10 (above-ground execution) alone carries 23 skill statements, and EC 9 (foundation execution) has 22. The Profil de compétences for this licence cross-references National Building Code Part 9 articles directly (9.4.3, 9.4.4.1, 9.15.2.4, 9.15.4.x) — the candidate is expected to know what each article says.

3. Detailed competency elements

Module 1 — Definitions and types of structures

• EC 1 — Concrete-structure notions and terms (3 skill statements): shallow vs. deep foundations and load-bearing elements; allowable deflection ratios (L/240, L/360, L/420); shrinkage, curing, camber.
• EC 2 — Concrete properties (3 skill statements): aggregate, water, strength, mix design, temperature; quality risk factors (frost, water-cement ratio); admixtures (calcium, etc.) and their effects.
• EC 3 — Load concepts (4 skill statements): live load, dead load, bearing area; snow, wind, seismic loads; lateral loads (causes and consequences); concentrated vs. uniformly distributed loads.
• EC 4 — Structure characteristics and components (4 skill statements): structural elements and their functions; stability assemblies; bracing (contreventements); lateral-stability components.

Module 2 — Legislative, normative and regulatory framework

• EC 5 — Codes and standards for concrete-structure work (6 skill statements): applying parts and sections of the Quebec Construction Code Chapter I — Building 2005; identifying CSA and other applicable standards; the role of the Canadian Standards Association (CSA); scope of codes and standards by material and building type; relationship between concrete-structure standards and the Quebec Construction Code Chapter I (organizational structure); designer vs. contractor responsibilities for soil and groundwater investigation.

Module 3 — Plans and specifications

• EC 6 — Reading drawings and plans (9 skill statements): locating elements on a plan; concrete-structure symbols; dimensions and annotations; sections and details; general notes and tables; quantity take-off (métré) for concrete and formwork; erection drawings (plans de montage); shop drawings (dessins d'atelier).
• EC 7 — Reading specification divisions (4 skill statements): divisions and sections for structural elements; formwork specifications; rebar specifications; cast-in-place and precast concrete specifications.

Module 4 — Standards and execution of work

• EC 8 — Planning and organizing (12 skill statements): scope boundaries communicated to the general contractor; logical execution sequence; elements supplied by other disciplines but installed by 3.1; interface coordination; project characteristics requiring plans and specs; plan-modification process; climate impact on concrete work; maximum equipment weight on a concrete structure; steel-mill rebar certificates; concrete batching and delivery scheduling to avoid pour interruption; shop and erection drawing approval; machinery circulation on a slab.
• EC 9 — Foundation execution (22 skill statements): excavation level verification; benchmark placement for formwork; difference between a laterally supported wall and one that isn't (NBC 9.15.4.2); use limits of pilaster foundations (NBC 9.15.2.4); foundation construction by soil and load type; soil bearing capacity (NBC table 9.4.4.1); conditions preventing footing placement (disturbed soil, frost); sizing footings and walls in small buildings (NBC 9.15); excavation slope verification (CNESST requirements); undisturbed bearing soil verification (engineer samples); wall thickness for unsupported height ≤ 2.5 m (NBC 9.15.4.1); height above grade (NBC 9.15.4.3); reduction of upper wall thickness for joists and brick veneer (NBC 9.15.4.4); footing formwork with setback margins; crack-control joints (NBC 9.15.4.6); concrete cover for rebar in soil contact; concrete placement supervision; formwork-stripping delays for footings and walls; air-cure protection; anchor bolt and embed positioning; backfill quality with positive slope.
• EC 10 — Above-ground structure execution (23 skill statements): camber calculations from designer criteria; elements requiring formwork camber; maximum allowable deflection by free span (NBC 9.4.3); rules for penetrating concrete structural elements; importance of foundation anchorage; formwork levels and cambers; safe use of lifting/placing equipment; rebar steel properties; common rebar diameters; rebar locations (tension/compression/shear zones) for various concrete elements; lap-splice function and lengths; rebar splice methods; pre-pour rebar verification (tolerances, placement, column strip concentration, two-way slabs); pre-pour formwork verification (bracing, tightness, safety); professional sign-off before pouring (plans-and-specs work); other-discipline embedded items verification; concrete placement supervision (pour height, free fall, vibration); curing time and procedure (no overload, protection from impacts/vibration/weather); cold-weather and hot-weather concreting methods; drying and curing conditions; formwork-stripping delays for various elements; slab crack-control joint location; backfill compaction before slab pour.
• EC 11 — Quality control (9 skill statements): minimum concrete quality for small-building components (NBC 9.3); air meter and slump cone testing; delivered-concrete verification (mix description, batching time, transport delay); air-entrainment importance; structural quality-control means; tests and trials on materials; quality-control responsibility allocation; material quality at reception and storage; problem-solving for execution issues.
• EC 12 — Health and safety (5 skill statements): formwork safety rule compliance; shoring-plan purpose; shoring-plan production based on applied loads (S-2.1 r.4 section VI); fall-arrest devices; safe lifting equipment operation.

4. Documents at the exam — mixed-book format

Provided at the exam (open book — 1 document)

• Code de sécurité pour les travaux de construction (RLRQ, S-2.1, r.4) — Safety code for construction work

Recommended reading only (closed book — 7 documents)

• Loi sur le bâtiment (RLRQ, B-1.1) — Building Act
• Code de construction (RLRQ, B-1.1, r.2) — Chapter I, Building 2005
• Règlement sur la qualification professionnelle des entrepreneurs et des constructeurs-propriétaires (RLRQ, B-1.1, r.9)
• Code de sécurité (RLRQ, B-1.1, r.3) — Safety code (in-use buildings)
• Loi sur la santé et la sécurité du travail (RLRQ, S-2.1) — Act respecting occupational health and safety
• CAN/CSA-A23.1-F04/A23.2-F04 — Concrete: Constituents and execution of work / Test methods and standardized practices
• CAN/CSA-A23.4-F05 — Precast concrete - Constituents and execution of work

Several Quebec documents are available free of charge on publicationsduquebec.gouv.qc.ca. The CSA standards are available from the CSA store.

5. Material provided at the exam

The calculator, ruler, paper and pencil needed for the exam are supplied on site. Only the documents and material handed out by the exam supervisor may be used during the session — personal copies, notes, electronic devices, and additional reference material are not allowed.

6. What makes the RBQ 3.1 exam different

The RBQ 3.1 contractor licence is the only one in the RBQ 3.x series dedicated to structural concrete — both cast-in-place and precast — and it carries a uniquely heavy technical scope. The Profil de compétences lists 104 skill statements (the most so far) and references National Building Code Part 9 article numbers directly: 9.4.3 (allowable deflection), 9.4.4.1 (soil bearing capacity table), 9.15.2.4 (pilaster foundations), 9.15.4.1 (wall thickness for unsupported height), 9.15.4.2 (laterally supported walls), 9.15.4.3 (height above grade), 9.15.4.4 (upper-wall thickness reduction), 9.15.4.6 (crack-control joints). The exam expects the candidate to know what each article says, not just that it exists.

The CSA A23 standards are equally important and equally closed-book. CSA A23.1 covers cast-in-place concrete materials and execution — mix design, placement, curing, finishing. CSA A23.2 covers test methods and standardized practices — slump cone, air meter, compressive strength tests, the things the contractor runs on delivered concrete. CSA A23.4 covers precast concrete. The three standards together define what makes concrete acceptable in Canada, and the exam draws heavily from all three.

Module 4 dominates the exam at 71 skill statements. Foundation execution (EC 9, 22 skill statements) and above-ground execution (EC 10, 23 skill statements) are the two heaviest blocks. The candidate is expected to walk through every step of every pour — formwork verification, rebar placement check, pre-pour professional sign-off, placement supervision, cure protection, formwork stripping, anchor positioning, backfill — and to know the Code articles that govern each step.

The exam is heavily closed book. The single open-book reference (S-2.1 r.4) governs construction-work safety and the shoring rules in section VI. Everything substantive about concrete itself — the codes, the CSA standards, the building act — is recall.

7. Recommended preparation strategy

1. Memorize the NBC Part 9 articles that the Profil calls out by number. 9.4.3 (allowable deflection), 9.4.4.1 (soil bearing capacity), 9.15.2.4 (pilaster foundations), 9.15.4.1 through 9.15.4.6 (wall thickness, lateral support, height above grade, upper-wall reduction, crack joints). These are the highest-density-per-study-hour content in the exam.
2. Master the three CSA A23 standards. A23.1 (cast-in-place materials and execution), A23.2 (test methods — slump cone, air meter), A23.4 (precast). Build flashcards around the key acceptance criteria, test procedures, and limits.
3. Anchor preparation around Module 4 (71 skill statements). EC 8 (planning, 12 statements), EC 9 (foundations, 22 statements), EC 10 (above-ground, 23 statements), EC 11 (quality control, 9), EC 12 (safety, 5). Walk through a complete pour sequence end-to-end, multiple times, for both foundations and above-ground.
4. Drill the rebar and placement content. Module 4 EC 10 has 23 skill statements covering rebar diameters, lap lengths, splice methods, placement tolerances, cover requirements, and pre-pour inspection. These show up in multiple-choice questions in many forms — practice until automatic.
5. Practice the field tests. Slump cone, air meter, compressive strength — Module 4 EC 11 expects fluency with the procedures from CSA A23.2. The exam will test what each test measures, when to run it, and what the acceptance criteria are.
6. Master cold-weather and hot-weather concreting. Module 4 EC 10.19 tests methods for both. Temperature limits, admixture use, curing protection — these are commonly tested topics.
7. Memorize the section VI shoring rules of S-2.1 r.4. Module 4 EC 12.3 references this section specifically. Shoring plans must be designed for applied loads. The exam expects you to recognize when a shoring plan is required and what it must contain.
8. Take at least two full mock exams under real conditions (3 hours, only S-2.1 r.4 on the desk, single sitting) before scheduling the real exam.
9. Review every wrong answer. The Prof-RBQ.ca platform shows the reasoning behind each correct answer — read every explanation, even on questions you got right.

8. Why Prof-RBQ.ca for the RBQ 3.1 exam

• Aligned with the official RBQ structure — content mapped one-to-one to the four modules and their 12 competency elements, with extra depth on Module 4 (71 skill statements) and the NBC Part 9 articles the Profil cites by number.
• CSA A23 standards in focus — dedicated content on A23.1 (cast-in-place materials), A23.2 (test methods including slump cone and air meter), and A23.4 (precast), since all three are closed book.
• Closed-book training methodology — flashcards and spaced practice for the 7 closed-book documents, with separate navigation drills for the single open-book reference (S-2.1 r.4).
• End-to-end pour-sequence drills — foundation and above-ground pour sequences walked through repeatedly, each step tied to the Code article that governs it.
• Mock exams in RBQ format — multiple choice, 3-hour timing, 60% passing grade, with only S-2.1 r.4 on the desk — so exam day feels familiar.
• Detailed answer explanations — every question, right or wrong, comes with a written rationale citing the underlying article, code, or standard.
• Bilingual — full course in English and French. The RBQ exam itself is offered in both languages.
• A free section is available so you can try the platform before committing.

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