BC first aid drills after procedures change

September 29, 2026·13 min read

A changed instruction needs to work in real time

A British Columbia site changes the route used to move an injured worker to the place where transport can collect them. The written first aid procedure is revised and sent to supervisors. A few weeks later, a worker needs help on the far side of the site. The problem is no longer whether the document was updated. The question is whether workers can summon help, the attendant can reach them, and the person authorized to arrange transport knows the current route.

Section 3.17 of WorkSafeBC's Occupational Health and Safety Regulation addresses that operational test. The employer must keep written first aid procedures up to date, communicate them effectively, train the attendant and other people authorized to call for transport, and ensure drills are conducted at least once each year and whenever the procedures change. The drills test whether the procedures are effective and whether the people who have roles under them can perform those roles.

This is a guide to the drill decision and execution. It does not calculate the workplace's required first aid attendants or supplies. That is the separate written assessment under section 3.16. It also does not suggest that a drill alone proves the whole workplace meets the regulation. A useful drill produces observations and corrections. A staged exercise that ends with a signed attendance sheet but never tests the difficult part of the response leaves the central question unanswered.

Read the written procedure before designing the drill

Section 3.17 subsection 1 specifies the contents of the written first aid procedure. It covers the available equipment, supplies, facilities, attendants and services; where first aid is and how to call for it; how the attendant responds; how workers are accessed and moved when barriers exist; the attendant's authority over treatment and the employer's reporting responsibility; who calls for transportation and how; the location of emergency transportation where required; and prearranged routes in and out of the workplace and to medical treatment.

The drill should test the parts of that procedure most likely to fail in the actual workplace. A remote crew may need to prove that the call reaches the attendant and that the vehicle can reach the worker. A warehouse may need to show that the route is clear when a loading bay is busy. A construction site may need to coordinate several employers and a changing access gate. The exact scenario comes from the written procedure and the work, not from a generic script printed for every client.

Begin by confirming the current version. Check its effective date, the locations and shifts it covers, and who was told about it. If workers are still using an old phone number or map, update communication before using a drill to assess their performance. A drill should expose weaknesses in the arrangement, but it should not manufacture failure by withholding the procedure employees should already have.

The annual requirement and the change trigger

The regulation states two timing conditions: drills at least once each year, and drills whenever the procedures change. They are not interchangeable. A drill conducted months ago does not automatically cover a changed response procedure today. Similarly, a drill following a change does not remove the need to maintain a continuing annual program. Keep a record of when the last drill occurred and what version of the procedures it tested.

The word change should be read with WorkSafeBC Guideline G3.17 subsection 4. That guidance discusses substantial changes that affect response, such as a changed workplace class, different required first aid certification level or revised rescue procedures. It also gives examples of variations that would not generally be considered substantial, such as a different designated attendant while the procedure remains the same. This is regulator guidance about applying the legal rule. It is not a licence to ignore a material change merely because the document uses the same heading.

Document what changed and whether it alters the response people must carry out. A spelling correction does not normally change what anyone does. Moving the attendant's call point, changing the route through a gate, replacing the transport arrangement or revising how a worker is extracted from a difficult location can. If it is not clear whether the change is material, a practical drill can resolve the operational uncertainty. Do not declare a universal rule that every name or administrative detail demands a new full exercise.

The due date should be understood operationally. Section 3.17 does not give a general fixed grace period after a procedure change. Plan a drill as part of putting the changed procedure into use. Do not wait for the next annual calendar entry when the change affects how an injured person would receive help now. If the changed work is about to start and the team cannot yet carry out the procedure, that is a readiness issue, not merely a recordkeeping issue.

Identify the people whose roles are being tested

The regulation requires training in the procedures for the first aid attendant and all other people authorized to call for transportation for injured workers. The drill then tests the capability of workers, attendants and those transport callers. A good participant list therefore follows the response chain. It includes someone who discovers the simulated injury, a person who summons first aid, the attendant, anyone who must control an access route, and the person authorized to arrange transport if the procedure calls for one.

Do not assume everyone needs to play every role in a single drill. A sensible exercise can select representative people and shifts, then use the results to see whether the system works for the workforce as a whole. The site should not rely only on the manager who wrote the procedure. Test whether an ordinary worker knows how to call for help and whether the replacement attendant can find the location. Consider how a night or weekend shift differs from a weekday office-hours exercise.

Brief participants on the safety limits of the drill. Use an uninjured volunteer or clearly identified simulation where appropriate. Do not move a person in a way that creates a real injury risk simply to make the exercise appear realistic. WorkSafeBC's guidance says drills should reasonably approximate the expected response up to the point of transport to hospital or medical aid. It also allows a tabletop exercise to supplement drill activities where a particular physical drill would pose undue hazard, provided it allows effective evaluation. That is a careful exception in guidance, not a blanket replacement of practical testing with a meeting.

Build a scenario from a credible failure point

Choose one clear initiating event. A worker reports an injury in a remote work area. The main access route is obstructed. A crew is working on a different level. Communications are unreliable at one location. The new procedure names a replacement first aid room. The scenario should lead naturally through the changed step. If the purpose is to test a revised transport route, do not run the entire exercise beside the vehicle and then record that the route succeeded without anyone using it.

State the assumptions in advance to the people planning the drill. Is the simulated worker able to speak? Which entrance is open? What communications are available? What injuries are being simulated, without inviting participants to perform medical treatment beyond their training? Give participants enough information to act within their roles, then observe what actually happens. A drill is not a surprise examination designed to embarrass staff. It is a test of a procedure and the organisation behind it.

Record the sequence rather than only an elapsed total. Note the time the call was made, whether it reached the intended person, how the attendant located the worker, whether access barriers were encountered, whether the transport caller understood the next step, and whether the route and destination information matched the written procedure. The regulation does not prescribe a single drill score or universal response time. Avoid inventing one for every BC workplace. Compare the observation with the procedure and the site's assessment of what prompt first aid and transport require.

Stop or modify the exercise if it creates an uncontrolled hazard or could confuse emergency services with a real incident. If an actual injury or emergency occurs, respond to it and end the simulation. The objective is to improve readiness, not to protect a planned drill timetable.

Test the communication and access path

First aid procedures can fail at the first call. A posted phone number may be out of date. The radio may not work in a basement. A worker may be told to contact a supervisor who is not on that shift. Section 3.17 requires procedures to be posted conspicuously in suitable places or, if posting is not practicable, effectively communicated by other measures. The drill can test whether that communication has reached the people who need it.

Move through the actual location and route. A map may show a gate that cannot be opened by the night crew. A lift may be unavailable during maintenance. Equipment may block the path intended for a stretcher. The regulation expressly includes how injured workers will be accessed and moved when barriers exist and prearranged routes in and out of the workplace. These details are worth testing when they form part of the procedure, subject to safe exercise design.

The first aid attendant's response also needs to be realistic. Can the attendant be contacted promptly? Does the attendant know which location code the worker used? Can the attendant reach the required equipment? If the procedure depends on someone meeting an emergency vehicle, does that person know where to go? The drill should identify a weak link that can be corrected, rather than merely demonstrate that a prepared group can recite the emergency number.

Temporary sites and multiple employers

WorkSafeBC's drill guideline discusses fixed sites and work at various temporary locations. Where procedures remain substantively the same across temporary workplaces, an annual drill at one location may be sufficient under the guidance. Where procedures vary substantially between locations, multiple drills may be needed. This is a regulator application guide, not a promise that any one exercise always covers every mobile crew. Compare the response steps and barriers before using a drill result from one site to represent another.

Multiple-employer workplaces need clear coordination. The guideline says drills at those locations should normally be initiated by the prime contractor unless other arrangements are made in writing. The construction schedule can change quickly, so confirm which employers and attendants the exercise is meant to test. A subcontractor should know where to report observations and whether its workers understood the shared procedure. An agreement about who initiates the drill does not make an ineffective response acceptable.

When a new employer or crew joins the site, consider whether the procedure has changed and whether the newcomers know it. A change in personnel alone is not necessarily a substantial procedure change under the guideline. The training and communication duties still matter. If the arrival changes access, worker location, transport coordination or another step, reassess whether a change-trigger drill is needed. Keep the procedure owner and drill owner clearly named so the issue does not fall between organisations.

Record what the drill showed

Section 3.17 requires the drill, but it does not prescribe one universal drill form or a fixed retention period for drill notes. WorkSafeBC Guideline G3.17 subsection 4 recommends records that show the date and time, participant names and roles, scenario, observations and outcomes, deficiencies and corrective actions. This is a sensible structure because it lets the employer demonstrate what was actually tested and what changed afterward.

Separate observation from interpretation. An observer might record that the call did not reach the attendant because the posted number was wrong. The conclusion is that the communication step failed. The corrective action may be to update the procedure, replace the posted copy, brief all shifts and test the corrected call path. A note that the drill was successful would obscure the finding. Treat a failed step as useful information, not as a reason to alter the record after the fact.

Give each corrective action an owner and due date. If a transport arrangement does not work, put an interim safe arrangement in place while it is repaired. If a route or procedure changes significantly as a result of the drill, the regulation's change-trigger drill requirement needs to be considered again. WorkSafeBC guidance recommends repeating the drill when significant deficiencies were found or when the drill could not be conducted as intended and the corrective change is significant.

Keep the current written procedure aligned with the result. If the drill shows that the described route is unusable, do not file the report and leave the route unchanged. Revise the procedure, communicate it, train the relevant people and verify that the revised step works. The drill and the procedure should tell the same story. When an assessment of first aid provision is also affected, refer the finding back to the separate written assessment under section 3.16.

Do not count a real incident review as the drill

After an actual injury, a business may learn a great deal by reviewing its response. It may discover that a radio failed, a gate was locked or a transport contact was unavailable. Those lessons should inform the written procedure and the next exercise. However, WorkSafeBC's G3.17 drill guidance says reviewing a real first aid incident will not generally be an acceptable alternative to a drill. An incident review may also involve privacy concerns and uneven participation. Treat it as learning evidence, not as an automatic annual drill credit.

Likewise, a document review alone is not the same as testing whether people can carry out the procedure. Reading a new route map in a meeting can be part of preparation, but it does not show that a worker at the remote location can summon help or that transport can follow the route. Where a physical exercise is unsafe, use the regulator's tabletop guidance thoughtfully and supplement it with safe practical checks that test the remaining response steps.

An attendance list can support a drill record, but it is not proof that the procedure was effective. Ask what the exercise found. If every drill ends with no observation, no changed action and no test of difficult steps, review whether the scenarios are too easy or the observers are missing the actual failure points. The aim is to improve response before a real injury makes the weakness visible.

A short plan for the next exercise

Retrieve the current first aid procedures. Identify the date of the last drill and every substantive change since then. Choose a scenario that tests a critical step, especially the part that changed. Assign the employer's drill owner, attendant, transport caller and observer. Tell participants how the exercise will be marked as a simulation and how to stop it safely. Confirm that emergency communications will not be confused with a real call.

During the drill, follow the procedure from discovery of the simulated injury through call, attendant response, safe access and the transport decision. Observe the actual route and communication path without creating a new hazard. Afterward, compare each step with the written instruction. Record successes as well as failures, but give priority to barriers that would delay care. Update the procedure and training where needed. If the new procedure materially changes response, arrange the follow-up testing that the legal change trigger and regulator guidance call for.

Keep the first aid assessment separate from the drill. The assessment determines the services the workplace needs; section 3.17 tests whether people can use the written response procedure. The live Canadian health and safety program guide is the broader parent. For a record system, ask Complys Canada to demonstrate its current capabilities against your procedure versions, drill observations and corrective action workflow. This article does not claim Complys schedules drills or certifies legal compliance.