Due diligence, records and working with regulators

Lesson 1 described what the law requires of supervisors. This lesson is about showing that you did it. When something goes wrong on a site, the question that follows is not only what happened but what the people in charge did beforehand to prevent it. A supervisor who took every reasonable precaution, and can show it, is in a very different position from one who meant well but kept no record and did not follow up. The same habits also prevent most incidents in the first place, which is the real point.

What due diligence means

OSHA citations do not have a due diligence defense in the Canadian sense, but a similar idea runs through enforcement. An employer can defend a citation by showing unpreventable employee misconduct: that it had work rules designed to prevent the violation, communicated them to workers, took steps to discover violations and enforced the rules when they were broken. Whether a violation is classed as serious, willful or repeated, and how a controlling employer's care is judged under the multi-employer policy, also turns on what the employer and its supervisors knew and did. CON-305 introduced the personal side of this; this lesson focuses on what reasonable care looks like day to day for a superintendent or foreman, and how to show it.

Courts and regulators look at the same practical questions in both countries.

A day in the records

Due diligence is not a binder assembled after an incident. It is the record of ordinary supervision done every day. Here is what a normal Tuesday on Larkspur Commons leaves behind.

• 6:45. Omar walks the site before the crews arrive and records two findings on the inspection app: a missing toe board on the level 5 east scaffold bay and a pallet of sheathing stacked against a guardrail on level 4. Both are fixed before 7:30, and the corrective actions are closed with photographs.
• 7:00. Each foreman leads a pre-task planning session with their crew and the crew signs the plan. Ridgeline Framing's plan for level 5 lists the leading edge, the open stair shaft and wind gusts as hazards.
• 9:30. Dana sees a framer working at the leading edge with his lanyard clipped to his own harness ring rather than the anchor. He stops him, they talk about it, and Dana records a coaching conversation in his daily log. The framing foreman covers anchor points at the next morning's huddle.
• 13:00. A delivery driver reverses into the laydown area without a spotter. Omar stops the truck, reminds the driver of the site traffic plan and records the near miss.
• 15:30. Priya and Omar review the day's observations and update the corrective action log. One item, a damaged extension cord, is still open because the electrician is replacing it tomorrow; the cord has been tagged out of service.

None of these records took more than a few minutes. Together they show a supervisor who knew the hazards, checked the work, corrected problems, coached and followed up. If a worker had fallen at the stair shaft that afternoon, the investigation would have found a system that was working and a specific failure to examine, rather than an absence of supervision.

Writing records that hold up

Records help only if they are specific, timely and honest. Vague records ('site safe', 'talked to crew') prove very little; records written days later, or changed after an incident, can do more harm than having none. Thornbury's guidance for supervisors is short.

Records should say who, what, where, when and what was done, in plain words, at the time. If a record turns out to be wrong, the right way to correct it is a dated note saying so, not an edit that hides the original. Distances and quantities should be written as they were, for example 6 ft from the edge, not 'close'.

Enforcement and fair discipline

Rules that are never enforced are not rules. A site where supervisors walk past unclipped lanyards is telling workers that the rule is optional, and a court will draw the same conclusion. But enforcement does not mean punishment first. Most breaches come from a gap in knowledge, equipment or planning, and are best handled by stopping the work, finding out why and fixing that. Thornbury uses a graduated approach.

Two principles keep enforcement fair. It must be consistent: the same breach gets the same response whether the worker is a favorite foreman's best hand or a new laborer. And the supervisor must look at their own part first. If the anchor points were not installed where the work was, the framer who clipped to his harness was solving a planning problem badly, and the response is to fix the planning. Subcontractor workers are disciplined by their own employers; Thornbury's role is to require the subcontractor to act and, for serious breaches, to remove the worker from the site under the subcontract terms.

When the regulator visits

OSHA inspections are either programmed, such as those under national and local emphasis programs for falls, trenching and other construction hazards, or unprogrammed, in response to fatalities and serious injuries, complaints and referrals. Construction is the most inspected industry, and fall protection in construction has topped OSHA's list of most frequently cited standards for many years.

When an inspector arrives on Larkspur Commons, Thornbury's procedure is the same whatever the reason for the visit.

• Greet the inspector, check identification and ask the purpose and scope of the visit.
• Call Dana (or Omar if Dana is away) and Priya; the superintendent accompanies the inspector.
• Invite the subcontractors whose work is involved; their supervisors should be present for their areas.
• Be courteous and truthful. Answer the questions asked; do not guess or speculate, and do not hide or alter anything.
• Take the same photographs and measurements the inspector takes, and note what was said.
• Correct any hazard identified immediately where possible, and record the correction.

After the inspection, OSHA may issue citations within six months, each with a classification (other-than-serious, serious, willful, repeat or failure to abate), a proposed penalty and an abatement date. The employer must post citations near the hazard, can request an informal conference with the area director, and can contest a citation by filing a notice of contest within 15 working days of receiving it, after which the case goes to the Occupational Safety and Health Review Commission. Abatement must still be certified for uncontested items. Willful violations that cause a worker's death can be prosecuted criminally, although such cases are rare.

The penalties matter, but the bigger costs of a serious incident are the human ones and the disruption: a stopped site, a lost crew, an investigation and a reputation with owners who prequalify contractors on their safety records. The example below estimates penalty exposure only to show how quickly it adds up, not because penalties are the main reason to work safely.

# Illustrative penalty exposure after a fall protection inspection (simplified OSHA approach)
max_serious = 16_550
items = [  # (description, severity factor, probability factor)
    ("unprotected leading edge, level 5", 1.0, 1.0),
    ("missing guardrail at stair shaft", 1.0, 0.8),
    ("ladder not extended 3 ft above landing", 0.5, 0.6),
]
size_reduction = 0.10      # illustrative reduction for employer size
history_reduction = 0.0    # no reduction if cited for serious violations in the past 5 years
total = 0
for d, sev, prob in items:
    p = max_serious * sev * prob * (1 - size_reduction) * (1 - history_reduction)
    total += p
    print(f"{d}: {p:,.0f}")
print(f"proposed total {total:,.0f}")
print(f"if the first item were classed willful: up to {165_514:,} for that item alone")

unprotected leading edge, level 5: 14,895
missing guardrail at stair shaft: 11,916
ladder not extended 3 ft above landing: 4,468
proposed total 31,280
if the first item were classed willful: up to 165,514 for that item alone

The numbers are illustrative, but the lesson is real: a handful of fall protection findings can cost tens of thousands of dollars, and the classification, which depends on what supervisors knew and did, matters as much as the hazard itself.

Supervisors and the investigation after an incident

After a serious incident, regulators interview supervisors. A supervisor may have their own interests at stake as well as the employer's, and in a serious case may want independent legal advice. Thornbury's guidance is to be truthful, to describe what you know rather than what you assume, to provide the records that exist, and never to create or change a record after the fact. Lesson 8 covers incident reporting and the company's own investigation.