Due Diligence in BC: Turning “All Reasonable Steps” into Verifiable Controls

Convert “due diligence” into a repeatable evidence system that stands up to inspection and post-incident review.

In British Columbia, “due diligence” is the ability to demonstrate that you took all reasonable steps to protect workers from harm—not simply that you have written policies. WorkSafeBC explains due diligence in exactly these terms and stresses being able to show evidence of implementation and enforcement. The practical consequence is that your OHS program must produce an evidence chain linking hazards to controls, controls to competency, and competency to verification.

A defensible due-diligence system starts with a living hazard inventory and task-based risk assessments that reflect real work conditions. Controls should be selected using the hierarchy of controls: eliminate or substitute hazards where feasible, then use engineering controls, administrative controls, and PPE for residual risk. “All reasonable steps” becomes much easier to demonstrate when you can show inspection records, corrective action closure, near-miss reporting, and competence validation for critical tasks.

The most common due-diligence failure mode is “paper without practice.” Documentation alone does not prove risk reduction; verification does. Build a small set of leading indicators that match your top hazards—examples include field verification of lockout steps for maintenance work, evidence that traffic control plans are implemented on roadside jobs, or confirmation that respirators used for silica and smoke exposures are fit tested and used correctly. When incidents happen, show how investigations identify system causes and result in controls that are implemented and verified, not just “reminders.”

Magga Safety Consulting positions its services around practical hazard controls, defensible documentation, and follow-through to close gaps—exactly the operational pattern that creates due diligence evidence.

• Actionable takeaways

  Map hazards → controls → training → verification evidence; use leading indicators tied to critical risks; treat corrective-action closure as control verification.