⚠️ Active construction work is almost always assessed as HIGH RISK → Type 3 Intermediate kit. The principal contractor is solely responsible for conducting a written risk assessment for the site. Construction sites with excavations ≥6 m, structures ≥15 m, demolition, underground work, or work near high-voltage lines are formally designated
high risk construction sites under the Safety Code (S-2.1, r. 4, s. 1.1). On-site administrative or office trailers separated from active construction may qualify as
Low/Moderate Risk → Type 2 Basic .
Visit CNESST for full kit guidance →
Part A: Construction Site-Specific Standards
Kit Distribution Across Work Zones (5-Minute Rule): An adequate number of kits are distributed so that any worker on site can access a kit within approximately 5 minutes . On large or multi-level construction sites, this typically requires kits at each active work zone, on each floor of a structure under construction, and at remote site areas — not only at the site trailer. (Section 8 and Section 4, First-aid Minimum Standards Regulation)
Kit Signage & Visibility: Each kit is clearly marked with a cross and "First Aid Kit" in easy-to-read print. Signage is posted so workers can quickly locate all kits on site, including the site communication system. Kits are never stored in a locked cabinet and are accessible at all times during working hours. (Section 13, First-aid Minimum Standards Regulation)
Vehicle First Aid Kits: Any site vehicle used to transport or carry workers to areas where a standard kit is not accessible — or to locations more than 30 minutes by road from a medical facility — is equipped with an appropriate first aid kit. For vehicles carrying ≤5 workers within 30 minutes of a medical facility: Type 2 Basic kit. For vehicles with >5 workers in an isolated location: Type 2 Basic kit minimum. (Section 5, First-aid Minimum Standards Regulation)
30-Minute Isolation Rule — First Aid Room Trigger: Confirm whether this site is more than 30 minutes by road (under normal conditions) from a medical clinic, ambulance service, or hospital. If yes and the site has 25 or more workers at any given time, the principal contractor must provide a dedicated first aid room (not just a first aid area) at their own expense. If yes and the employer has more than 20 workers in the building construction or public works sector, a first aid room is also required. (First-aid Minimum Standards Regulation — Nursing Staff and First Aid Room provisions)
Emergency Response Information Posted: Emergency contact numbers (9-1-1, nearest hospital name and address, poison control), the address or GPS coordinates of the site, and the fastest route to the nearest emergency medical facility are posted conspicuously at the site entrance and at the first aid station. Workers have been briefed on emergency procedures.
Fall Arrest Rescue Procedure (Written Plan): For any site where work is performed at heights using a fall arrest system, a written rescue procedure is in place that allows for a suspended worker to be rescued within 15 minutes or less . Rescue drills are conducted every 6 months. Rescue equipment (anchor slings, descent devices, ropes, carabiners) is on site and accessible. At least one trained rescue worker is available at all times. (Safety Code for the Construction Industry, S-2.1, r. 4, Section 2.9.5.2)
High-Risk Site Designation Reviewed: Confirm whether this site qualifies as a formally designated high-risk construction site under the Safety Code (S-2.1, r. 4, s. 1.1), which includes: excavation ≥6 m depth, trench ≥50 m, underground work, demolition, building or structure ≥15 m in height, work near electrical lines >750 V, underwater or hyperbaric work, or use of explosives. High-risk designation affects CNESST reporting and enhanced site safety protocols.
Eye Wash & Eye Protection Supplies: Adequate eye wash (sterile saline or eye wash station) is available near areas with concrete, masonry dust, chemical agents, grout, adhesives, or welding/grinding operations. Check expiry dates on all sealed eyewash bottles. Eye dressing sets are stocked in the kit. (Critical for construction dust, chemical splash, and foreign object injuries.)
Burn Treatment Supplies for Hot Work: Check expiry dates on hydrogel burn dressings. Burn treatments must be present and fully serviceable for sites involving welding, cutting, grinding, torch work, hot asphalt, concrete burns, or electrical arc hazards.
Tourniquet Accessibility: Arterial tourniquet (required in Type 3 kits) is confirmed present, within expiry, and is immediately accessible. On construction sites, power tool lacerations, caught-in-machinery injuries, and crush injuries create a high risk of severe arterial bleeding — tourniquet access is a critical life-safety item.
CNESST Site Opening Notification on File: Confirm the principal contractor has notified the CNESST in writing of the construction site opening at least 10 days before activities began (except for sites lasting 1 month or less, or emergency repair work). Notification file is retained on site. (Safety Code for the Construction Industry, S-2.1, r. 4, s. 2.4.1)
Part B: CNESST Administrative Requirements (All Workplaces)
First Aider Names Posted Visibly: The full name, job title, and work location of all first aiders currently on site are posted in a conspicuous, accessible place — at minimum at the site entrance or first aid station. On larger sites, this information must be posted in each work zone. Information must be kept up to date on every shift. (Section 14, First-aid Minimum Standards Regulation — mandatory)
Required Number of First Aiders on Site: Confirm the correct number of CNESST-certified first aiders are present on site at all times: ≤50 workers = 1 first aider; 51–150 workers = 2 first aiders; 151+ workers = 3 first aiders + 1 per additional 100 workers. On construction sites with multiple active zones, confirm first aiders are strategically positioned so any injured worker can receive care within 5 minutes. (Section 3, Regulation)
CNESST-Accredited Training Only: Confirm all first aiders on site hold a valid certificate from a CNESST-accredited training organization . Only CNESST-approved 16-hour courses are recognized in Quebec — certificates from other providers are not accepted. Certificates are valid for 3 years . The CNESST subsidizes training for up to 5% of the establishment's total workers. (First Aid in the Workplace Program)
First Aid Register Up to Date: Every instance of first aid administered on site is recorded in the register, including the first aider's name, the injured worker's name, the date and time, a description of the injury, and the type of first aid given. The register is kept on site and available for inspection. (Required — First-aid Minimum Standards Regulation)
Contents List in Each Kit: The minimum contents list (per CSA Z1220-17) is present inside each first aid kit on site for verification during inspections. (Required — CSA Z1220-17 and CNESST Regulation)
Weekly Inspection Completed: All kits on site have been inspected within the last 7 days. All items are present, not expired, and in serviceable condition. Any item that is yellowed, dirty, opened (without an expiry date), or past its expiry date must be replaced immediately. (CNESST strongly recommends weekly inspections — the highest frequency standard in Canada)
Inspection Seal Method (Recommended): Each kit is sealed with an adhesive paper or plastic seal that breaks easily. The expiry date of the soonest-to-expire item is written on the seal. This provides immediate visual confirmation that the kit has not been opened since the last inspection — especially important on sites where multiple workers may access the kit.
First Aid Area (100+ Workers on Site): If 100 or more workers are present on this site at any given time, confirm a dedicated first aid area has been established. The area must be: available and accessible at all times, clean, well-ventilated, and well-lit. It must be equipped with: 1 stretcher, kit contents per Article 4 of the Regulation, soap and nail brushes, paper towels, 1 table and 2 chairs. (First-aid Minimum Standards Regulation)
First Aid Room (Isolation or Large Site Rule): If the site has 100 or more workers in the building construction or public works sector, OR has 25+ workers and is more than 30 minutes by road from a hospital or medical clinic , a dedicated first aid room must be provided by the principal contractor at their own expense. The room must contain all items listed in Section 21 of the First-aid Minimum Standards Regulation, and must have sanitary facilities, running water, heating, and ventilation. (First-aid Minimum Standards Regulation — Nursing Staff and First Aid Room)
Part C: Select your kit type and shift size to verify contents:
Kit type is determined by the workplace risk assessment. Active construction work areas are almost always High Risk → Type 3 Intermediate. On-site administrative trailers or offices separated from active construction may qualify as Low/Moderate Risk → Type 2 Basic. For sites with more than 100 workers, kits must be distributed proportionately throughout the site so any worker can reach one within approximately 5 minutes.
🔴 High Risk — CSA Type 3 Intermediate (Active Construction — Recommended Default)
Type 3 Small (2–25 workers)
Type 3 Medium (26–50 workers)
Type 3 Large (51–100 workers)
🟢 Low / Moderate Risk — CSA Type 2 Basic (Administrative / Site Office Areas Only)
Type 2 Small (2–25 workers)
Type 2 Medium (26–50 workers)
Type 2 Large (51–100 workers)
Part C: CSA Type 3 Intermediate — Small (High Risk, 2–25 Workers per Shift)
Adhesive Bandages: 25 x Sterile, assorted sizes (standard strip, large fingertip, knuckle, large patch).
Gauze Pads (3"): 12 x Sterile gauze pads, individually wrapped, 7.6 x 7.6 cm (3" x 3").
Gauze Pads (4"): 6 x Sterile gauze pads, individually wrapped, 10.2 x 10.2 cm (4" x 4").
Non-Adherent Dressings: 4 x Sterile, individually wrapped, 5.1 x 7.6 cm (2" x 3").
Abdominal Pad: 1 x Sterile, individually wrapped, 12.7 x 22.9 cm (5" x 9").
Conforming Stretch Bandage (2"): 1 x Roll, relaxed length, individually wrapped, 5.1 cm x 1.8 m.
Conforming Stretch Bandage (3"): 1 x Roll, relaxed length, individually wrapped, 7.6 cm x 1.8 m.
Compress/Pressure Dressings (4"): 1 x Sterile compress/pressure dressing with ties, 10.2 x 10.2 cm.
Compress/Pressure Dressings (6"): 1 x Sterile compress/pressure dressing with ties, 15.2 x 15.2 cm.
Triangular Bandages: 2 x Cotton triangular bandages with 2 safety pins each, 101.6 x 101.6 x 142.2 cm.
Tourniquet (Arterial): 1 x Arterial tourniquet. Check condition and expiry.
Adhesive Tape: 2.3 m (2.5 yd) total length, 2.5 cm (1") wide.
Elastic Support/Compression Bandage: 1 x 7.6 cm (3") width.
Eye Dressing Set: 2 x Sets of sterile eye dressing pad and eye shield with elastic strap.
Cold Pack: 1 x Instant cold pack (or equivalent). Check expiry.
Antiseptic Wound Cleansing Towelettes: 25 x Individually wrapped.
Antibiotic Ointment: 6 x Topical, single-use. Check expiry dates.
Hand/Skin Cleansing Towelettes: 6 x Individually wrapped (or equivalent).
Glucose Tablets: 1 x Package (4 g, 10 per package) or Diabetes Canada–recommended alternative. Check expiry.
CPR Pocket Mask: 1 x With one-way valve.
Examination Gloves: 4 x Pairs, disposable, medical grade, non-latex, powder-free.
Biohazard Waste Disposal Bag: 1 x Single-use.
Bandage Scissors: 1 x Stainless steel, angled blunt tip, minimum 14 cm (5.5").
Splinter Forceps/Tweezers: 1 x Fine point, stainless steel, minimum 11.4 cm (4.5").
Malleable Splint: 1 x Padded, minimum 10.2 x 61 cm (4" x 24").
Emergency Blanket: 1 x Aluminized, non-stretch polyester, minimum 132 x 213 cm (52" x 84").
Contents List: 1 x Present inside kit.
First Aider Required: 1 x CNESST-certified first aider (16-hour course, valid 3-year certificate) must be present for ≤50 workers on site.
Part C: CSA Type 3 Intermediate — Medium (High Risk, 26–50 Workers per Shift)
Adhesive Bandages: 50 x Sterile, assorted sizes (standard strip, large fingertip, knuckle, large patch).
Gauze Pads (3"): 24 x Sterile gauze pads, individually wrapped, 7.6 x 7.6 cm (3" x 3").
Gauze Pads (4"): 12 x Sterile gauze pads, individually wrapped, 10.2 x 10.2 cm (4" x 4").
Non-Adherent Dressings: 8 x Sterile, individually wrapped, 5.1 x 7.6 cm (2" x 3").
Abdominal Pads: 2 x Sterile, individually wrapped, 12.7 x 22.9 cm (5" x 9").
Conforming Stretch Bandage (2"): 2 x Rolls, relaxed length, individually wrapped, 5.1 cm x 1.8 m.
Conforming Stretch Bandage (3"): 2 x Rolls, relaxed length, individually wrapped, 7.6 cm x 1.8 m.
Compress/Pressure Dressings (4"): 2 x Sterile compress/pressure dressings with ties, 10.2 x 10.2 cm.
Compress/Pressure Dressings (6"): 2 x Sterile compress/pressure dressings with ties, 15.2 x 15.2 cm.
Triangular Bandages: 4 x Cotton triangular bandages with 2 safety pins each, 101.6 x 101.6 x 142.2 cm.
Tourniquet (Arterial): 1 x Arterial tourniquet. Check condition and expiry.
Adhesive Tape: 4.6 m (5 yd) total length, 2.5 cm (1") wide.
Elastic Support/Compression Bandages: 2 x 7.6 cm (3") width.
Eye Dressing Sets: 2 x Sets of sterile eye dressing pad and eye shield with elastic strap.
Cold Packs: 2 x Instant cold packs (or equivalent). Check expiry.
Antiseptic Wound Cleansing Towelettes: 50 x Individually wrapped.
Antibiotic Ointment: 12 x Topical, single-use. Check expiry dates.
Hand/Skin Cleansing Towelettes: 12 x Individually wrapped (or equivalent).
Glucose Tablets: 2 x Packages (4 g, 10 per package) or Diabetes Canada–recommended alternative. Check expiry.
CPR Pocket Mask: 1 x With one-way valve.
Examination Gloves: 8 x Pairs, disposable, medical grade, non-latex, powder-free.
Biohazard Waste Disposal Bags: 2 x Single-use.
Bandage Scissors: 1 x Stainless steel, angled blunt tip, minimum 14 cm (5.5").
Splinter Forceps/Tweezers: 1 x Fine point, stainless steel, minimum 11.4 cm (4.5").
Malleable Splint: 1 x Padded, minimum 10.2 x 61 cm (4" x 24").
Emergency Blankets: 2 x Aluminized, non-stretch polyester, minimum 132 x 213 cm (52" x 84").
Contents List: 1 x Present inside kit.
First Aider Required: 1 x CNESST-certified first aider (16-hour course, valid 3-year certificate) must be present for ≤50 workers on site.
Part C: CSA Type 3 Intermediate — Large (High Risk, 51–100 Workers per Shift)
Adhesive Bandages: 100 x Sterile, assorted sizes (standard strip, large fingertip, knuckle, large patch).
Gauze Pads (3"): 48 x Sterile gauze pads, individually wrapped, 7.6 x 7.6 cm (3" x 3").
Gauze Pads (4"): 24 x Sterile gauze pads, individually wrapped, 10.2 x 10.2 cm (4" x 4").
Non-Adherent Dressings: 16 x Sterile, individually wrapped, 5.1 x 7.6 cm (2" x 3").
Abdominal Pads: 4 x Sterile, individually wrapped, 12.7 x 22.9 cm (5" x 9").
Conforming Stretch Bandage (2"): 4 x Rolls, relaxed length, individually wrapped, 5.1 cm x 1.8 m.
Conforming Stretch Bandage (3"): 4 x Rolls, relaxed length, individually wrapped, 7.6 cm x 1.8 m.
Compress/Pressure Dressings (4"): 4 x Sterile compress/pressure dressings with ties, 10.2 x 10.2 cm.
Compress/Pressure Dressings (6"): 4 x Sterile compress/pressure dressings with ties, 15.2 x 15.2 cm.
Triangular Bandages: 8 x Cotton triangular bandages with 2 safety pins each, 101.6 x 101.6 x 142.2 cm.
Tourniquet (Arterial): 1 x Arterial tourniquet. Check condition and expiry.
Adhesive Tape: 9.1 m (10 yd) total length, 2.5 cm (1") wide.
Elastic Support/Compression Bandages: 2 x 7.6 cm (3") width.
Eye Dressing Sets: 4 x Sets of sterile eye dressing pad and eye shield with elastic strap.
Cold Packs: 4 x Instant cold packs (or equivalent). Check expiry.
Antiseptic Wound Cleansing Towelettes: 100 x Individually wrapped.
Antibiotic Ointment: 24 x Topical, single-use. Check expiry dates.
Hand/Skin Cleansing Towelettes: 24 x Individually wrapped (or equivalent).
Glucose Tablets: 4 x Packages (4 g, 10 per package) or Diabetes Canada–recommended alternative. Check expiry.
CPR Pocket Mask: 1 x With one-way valve.
Examination Gloves: 16 x Pairs, disposable, medical grade, non-latex, powder-free.
Biohazard Waste Disposal Bags: 2 x Single-use.
Bandage Scissors: 1 x Stainless steel, angled blunt tip, minimum 14 cm (5.5").
Splinter Forceps/Tweezers: 1 x Fine point, stainless steel, minimum 11.4 cm (4.5").
Malleable Splints: 2 x Padded, minimum 10.2 x 61 cm (4" x 24").
Emergency Blankets: 2 x Aluminized, non-stretch polyester, minimum 132 x 213 cm (52" x 84").
Contents List: 1 x Present inside kit.
First Aiders Required: 2 x CNESST-certified first aiders (16-hour course, valid 3-year certificates) must be present for 51–150 workers on site. Kits must be distributed proportionately throughout the site — every worker must be reachable within approximately 5 minutes.
First Aid Area (100+ Workers): If this shift has 100 or more workers on site, confirm a dedicated first aid area is equipped with: 1 x stretcher, kit contents per Article 4 of the Regulation, soap & nail brushes, paper towels, 1 x table and 2 x chairs. Area must be accessible, clean, lit, ventilated, and adequately heated. (First-aid Minimum Standards Regulation)
Part C: CSA Type 2 Basic — Small (Low/Moderate Risk, 2–25 Workers per Shift) — Administrative Areas Only
Adhesive Bandages: 25 x Sterile, assorted sizes (standard strip, large fingertip, knuckle, large patch).
Gauze Pads (3"): 12 x Sterile gauze pads, individually wrapped, 7.6 x 7.6 cm (3" x 3").
Abdominal Pad: 1 x Sterile abdominal pad, individually wrapped, 12.7 x 22.9 cm (5" x 9").
Conforming Stretch Bandage (2"): 1 x Roll, relaxed length, individually wrapped, 5.1 cm x 1.8 m.
Conforming Stretch Bandage (3"): 1 x Roll, relaxed length, individually wrapped, 7.6 cm x 1.8 m.
Compress/Pressure Dressings (4"): 2 x Sterile compress/pressure dressings with ties, 10.2 x 10.2 cm.
Triangular Bandages: 2 x Cotton triangular bandages with 2 safety pins each, 101.6 x 101.6 x 142.2 cm.
Adhesive Tape: 2.3 m (2.5 yd) total length, 2.5 cm (1") wide.
Antiseptic Wound Cleansing Towelettes: 25 x Individually wrapped.
Antibiotic Ointment: 6 x Topical, single-use. Check expiry dates.
Hand/Skin Cleansing Towelettes: 6 x Individually wrapped (or equivalent).
CPR Resuscitation Barrier Device: 1 x With one-way valve (barrier type or pocket mask).
Examination Gloves: 4 x Pairs, disposable, medical grade, non-latex, powder-free.
Biohazard Waste Disposal Bag: 1 x Single-use.
Bandage Scissors: 1 x Stainless steel, angled blunt tip, minimum 14 cm (5.5").
Splinter Forceps/Tweezers: 1 x Fine point, stainless steel, minimum 11.4 cm (4.5").
Emergency Blanket: 1 x Aluminized, non-stretch polyester, minimum 132 x 213 cm (52" x 84").
Contents List: 1 x Present inside kit.
First Aider Required: 1 x CNESST-certified first aider (16-hour course, valid 3-year certificate) must be present for ≤50 workers. Note: If this administrative area is part of a construction site, the principal contractor retains overall first aid obligation under Section 8 of the Regulation.
Part C: CSA Type 2 Basic — Medium (Low/Moderate Risk, 26–50 Workers per Shift) — Administrative Areas Only
Adhesive Bandages: 50 x Sterile, assorted sizes (standard strip, large fingertip, knuckle, large patch).
Gauze Pads (3"): 24 x Sterile gauze pads, individually wrapped, 7.6 x 7.6 cm (3" x 3").
Abdominal Pads: 2 x Sterile abdominal pads, individually wrapped, 12.7 x 22.9 cm (5" x 9").
Conforming Stretch Bandage (2"): 2 x Rolls, relaxed length, individually wrapped, 5.1 cm x 1.8 m.
Conforming Stretch Bandage (3"): 2 x Rolls, relaxed length, individually wrapped, 7.6 cm x 1.8 m.
Compress/Pressure Dressings (4"): 4 x Sterile compress/pressure dressings with ties, 10.2 x 10.2 cm.
Triangular Bandages: 4 x Cotton triangular bandages with 2 safety pins each, 101.6 x 101.6 x 142.2 cm.
Adhesive Tape: 4.6 m (5 yd) total length, 2.5 cm (1") wide.
Antiseptic Wound Cleansing Towelettes: 50 x Individually wrapped.
Antibiotic Ointment: 12 x Topical, single-use. Check expiry dates.
Hand/Skin Cleansing Towelettes: 12 x Individually wrapped (or equivalent).
CPR Resuscitation Barrier Device: 1 x With one-way valve (barrier type or pocket mask).
Examination Gloves: 8 x Pairs, disposable, medical grade, non-latex, powder-free.
Biohazard Waste Disposal Bags: 2 x Single-use.
Bandage Scissors: 1 x Stainless steel, angled blunt tip, minimum 14 cm (5.5").
Splinter Forceps/Tweezers: 1 x Fine point, stainless steel, minimum 11.4 cm (4.5").
Emergency Blanket: 1 x Aluminized, non-stretch polyester, minimum 132 x 213 cm (52" x 84").
Contents List: 1 x Present inside kit.
First Aider Required: 1 x CNESST-certified first aider (16-hour course, valid 3-year certificate) must be present for ≤50 workers.
Part C: CSA Type 2 Basic — Large (Low/Moderate Risk, 51–100 Workers per Shift) — Administrative Areas Only
Adhesive Bandages: 100 x Sterile, assorted sizes (standard strip, large fingertip, knuckle, large patch).
Gauze Pads (3"): 48 x Sterile gauze pads, individually wrapped, 7.6 x 7.6 cm (3" x 3").
Abdominal Pads: 2 x Sterile abdominal pads, individually wrapped, 12.7 x 22.9 cm (5" x 9").
Conforming Stretch Bandage (2"): 4 x Rolls, relaxed length, individually wrapped, 5.1 cm x 1.8 m.
Conforming Stretch Bandage (3"): 4 x Rolls, relaxed length, individually wrapped, 7.6 cm x 1.8 m.
Compress/Pressure Dressings (4"): 8 x Sterile compress/pressure dressings with ties, 10.2 x 10.2 cm.
Triangular Bandages: 8 x Cotton triangular bandages with 2 safety pins each, 101.6 x 101.6 x 142.2 cm.
Adhesive Tape: 9.1 m (10 yd) total length, 2.5 cm (1") wide.
Antiseptic Wound Cleansing Towelettes: 100 x Individually wrapped.
Antibiotic Ointment: 24 x Topical, single-use. Check expiry dates.
Hand/Skin Cleansing Towelettes: 24 x Individually wrapped (or equivalent).
CPR Resuscitation Barrier Device: 1 x With one-way valve (barrier type or pocket mask).
Examination Gloves: 16 x Pairs, disposable, medical grade, non-latex, powder-free.
Biohazard Waste Disposal Bags: 2 x Single-use.
Bandage Scissors: 1 x Stainless steel, angled blunt tip, minimum 14 cm (5.5").
Splinter Forceps/Tweezers: 1 x Fine point, stainless steel, minimum 11.4 cm (4.5").
Emergency Blanket: 1 x Aluminized, non-stretch polyester, minimum 132 x 213 cm (52" x 84").
Contents List: 1 x Present inside kit.
First Aiders Required: 2 x CNESST-certified first aiders (16-hour course, valid 3-year certificates) must be present for 51–150 workers.
First Aid Area (100+ Workers): If this shift has more than 100 workers, confirm a dedicated first aid area is equipped with: 1 x stretcher, kit contents per Article 4 of the Regulation, soap & nail brushes, paper towels, 1 x table and 2 x chairs. (First-aid Minimum Standards Regulation)
Understanding Quebec Construction Site First Aid Requirements
First aid on Quebec construction sites is governed by two overlapping frameworks. The First-aid Minimum Standards Regulation (CQLR, c. A-3.001, r. 10) — updated April 1, 2021 to adopt CSA Z1220-17 — sets kit contents and first aider ratios for all Quebec workplaces. For construction sites specifically, Section 8 of the Regulation places the obligation directly on the principal contractor , not individual employers. The Safety Code for the Construction Industry (S-2.1, r. 4) adds site-specific requirements including written site opening notification to the CNESST (Section 2.4.1), high-risk site designations, and fall rescue procedures (Section 2.9.5.2). Both regulations are administered and enforced by the CNESST.
Active construction work areas are almost always assessed as High Risk → Type 3 Intermediate kit . The Safety Code formally defines "high risk construction site" to include excavations ≥6 m, trenches ≥50 m, demolition, underground work, structures ≥15 m, and work near electrical lines over 750 V. Kit distribution must ensure any worker on site can access a first aid kit within approximately 5 minutes — meaning large or multi-level sites typically require multiple kits distributed across active work zones, not just at the site trailer. Vehicle kits are also required for any vehicle transporting workers to areas where a standard kit is inaccessible.
Quebec has two important isolation-triggered requirements unique to construction and industrial sectors. First, for sites with 100 or more workers in building construction or public works, or for any site with 25+ workers that is more than 30 minutes by road from a hospital or medical clinic , the principal contractor must provide a dedicated first aid room (distinct from a first aid area) at their own expense, equipped with all items listed in Section 21 of the Regulation, plus sanitary facilities, running water, and ventilation. Second, the Safety Code requires a written fall rescue procedure allowing rescue of a suspended worker within 15 minutes, with rescuers trained and drilled every 6 months. First aider ratios follow the same CNESST table as all workplaces: 1 first aider for ≤50 workers, 2 for 51–150 workers, with additional first aiders for every 100 workers beyond that. Only CNESST-accredited 16-hour training (renewed every 3 years) is accepted — certificates from non-accredited providers are not valid in Quebec.
