How do you manage contractor safety?

Protecting contractors should be a core safety priority. Contractor safety management helps reduce the risk of injury, illness and fatalities. That challenge can be difficult, especially when contractors work in unfamiliar environments, follow different training standards and answer to a different chain of command than the company’s own employees. These oversight gaps often contribute to contractor incidents or near misses.

A contractor safety program helps close those gaps. It sets clear expectations before work starts, verifies that contractors meet safety requirements through thorough risk assessment and helps organizations identify and respond to hazards as work progresses.

Organizations in construction, manufacturing, energy, utilities and facilities management rely on these programs daily, but any company that brings outside workers onsite should consider a formal contractor safety program.

Today’s companies are using mobile-first and artificial intelligence (AI)-powered tools for health, safety and environmental management. IBM Maximo® Health, Safety and Environment (HSE), for example, uses one operational system with AI-assisted classification to quickly capture an incident and direct it through to proper channels.

Contractor safety is important because it affects injury rates, insurance costs, project timelines and legal exposure, especially in the construction industry.

Research also points to a structural risk factor. A study published in August 2024 that analyzed Census of Construction and Bureau of Labor Statistics (BLS) injury data found that injury risk rises as work moves down the subcontracting chain.

According to the study, contractors near the bottom of the chain—organizations receiving most of their work from other contractors rather than project owners—had a 9% higher overall injury rate. That gap corresponded to an 11% higher serious injury rate than contractors higher up the chain. In addition, unfamiliar worksites, inconsistent training and communication gaps between host companies and contractors all raise the odds of an incident.

Every incident carries a cost, whether through medical claims, work stoppages, regulatory penalties or reputational damage. A serious injury might trigger an Occupational Safety and Health Administration (OSHA) investigation that extends well beyond the contractor involved and into the company’s broader safety practices.

Strong contractor safety management also supports business continuity. Worksites that manage contractor risk well experience fewer disruptions, keep projects moving on schedule and maintain stronger relationships with dependable contractors.

In the US, the OSH Act, multiple OSHA standards and various enforcement policies shape contractor safety rather than a single rule:

• General duty clause: This clause requires employers to provide a workplace free from recognized hazards, regardless of whether the affected worker is a direct employee or a contractor.

• OSHA’s multi-employer worksite policy: OSHA can hold more than one employer responsible for a hazard at a shared worksite. Under this policy, employers can be categorized as creating, exposing, correcting or controlling employers. A host company can be cited even if the contractor’s own employer caused the hazard.

• Process safety management (PSM) standard: PSM applies to companies working with highly hazardous chemicals and includes specific requirements for evaluating and monitoring contractor safety performance.

• Hazard communication standard (HazCom): HazCom requires companies to share information about workplace chemical hazards with contractors who might be exposed to them.

• Control of hazardous energy (lockout or tagout): Lockout or tagout applies when contractors service or maintain equipment that might unexpectedly start or release stored energy.

Beyond OSHA, industries such as construction, utilities and oil and gas layer on standards from other regulatory bodies, including the American National Standards Institute (ANSI) and the National Fire Protection Association (NFPA). Companies operating internationally also face more requirements that can differ significantly from US regulations.

The main contractor safety risks fall into six categories: physical hazards, chemical and environmental exposure, communication and training gaps, equipment and PPE mismatches, coordination failures on multi-employer sites and compliance and documentation gaps. Understanding them helps safety teams prioritize where to focus resources.

• Physical hazards: Falls, struck-by incidents, caught-in or caught-between hazards and electrocutions remain the leading causes of serious contractor injuries, particularly in construction and industrial settings. Together, these hazards make up the OSHA “Fatal Four” hazard types and account for roughly 60% of all construction worker fatalities in recent OSHA reporting.

• Chemical and environmental exposure: Contractors might encounter hazardous substances such as asbestos, confined spaces or extreme temperatures that differ from the conditions at their primary workplace. Without clear communication, contractors might not know what controls or protective measures the site requires.

• Communication and training gaps: A contractor’s safety training might not align with site-specific risks and reporting requirements. Language barriers, inconsistent onboarding and unclear reporting lines all increase risk.

• Equipment and PPE mismatches: Contractors sometimes arrive without the personal protective equipment (PPE) a site requires or with equipment that hasn’t been inspected to the host company’s standards.

• Coordination failures on multi-employer sites: When several contractors work in the same space, one crew’s activity can create a hazard for another. Poor scheduling and unclear communication between trades are common root causes of multi-employer incidents.

• Compliance and documentation gaps: Missing certifications, expired training records or incomplete permits can go unnoticed until an incident or audit exposes them.

Most contractor safety management programs follow a similar process, whether they are managed manually or through software.

Before a contractor is approved to work, the host company reviews their safety performance, insurance coverage, training records and regulatory compliance.

Many organizations use a third-party prequalification service or internal scoring system to standardize the review.

After approval, contractors complete an orientation that covers site hazards, emergency procedures, reporting requirements and any equipment or access rules specific to that location.

Site-specific training closes the gap between a contractor’s general safety knowledge and the realities of a specific worksite.

Certain tasks require permits before they begin, such as hot work, confined space entry or work at height. Access management also covers badge issuance, restricted-area controls and check-in and check-out procedures.

Some organizations manage this step through an enterprise asset management (EAM) system, which links a contractor’s work order to the specific asset involved.

Safety practices are ongoing. Supervisors and environmental, health and safety (EHS) teams conduct site inspections, inspect fall prevention and safety instrumented systems (SIS), verify PPE compliance and assess other site hazards.

When an incident occurs, contractors need a clear, fast way to report it. Host companies should have a safety plan in place and investigate it with the same rigor applied to employee incidents.

No matter who the incident involves, the root cause often points to a gap in broader safe work practices.

After a project ends (or regularly for long-term contractors), companies must evaluate contractor safety performance. The host company can use this review to reassess risk and adjust future training or oversight requirements.

Poor performance can affect future work eligibility, while strong performance can streamline requalification.

Responsibility for contractor safety is typically shared across five groups: host companies or site owners, contractor employers, EHS and safety teams, project managers and site supervisors and individual contractors.

Contractor safety programs work best when responsibilities are clearly assigned:

• Host company or site owner: Sets site-specific safety requirements, verifies contractor qualifications, provides hazard information and maintains oversight of shared work sites.

• Contractor employer: Trains their own workforce, enforces a robust safety culture, supplies appropriate PPE and equipment and helps ensure that workers meet host company requirements.

• EHS and safety team: Manages prequalification, conducts audits and inspections, tracks compliance audit documentation and leads incident investigations.

• Project manager/site supervisor: Coordinates schedules across multiple contractors and enforces permit requirements. These individuals serve as the first point of contact for worksite safety hazards and other concerns.

• Individual contractor: Follows site rules, uses required PPE and reports hazards and incidents promptly. They are responsible for following worker safety protocols and stopping work when conditions become unsafe.

The most effective contractor safety practices include standardizing prequalification, communicating hazards before work begins, establishing stop-work authority, tracking leading indicators, centralizing documentation, auditing regularly and investigating incidents:

• Standardize prequalification: Use consistent criteria to evaluate every contractor, regardless of company size or how long they’ve worked with the organization.

• Communicate hazards before work begins: Clearly communicate site-specific risks during orientation. Contractors might not know what information they need without clear guidance.

• Align on stop-work authority: Let contractors know they have the authority and obligation to stop work when they identify an unsafe condition.

• Track leading indicators: Track close‑call report data, training completion rates and inspection findings to predict incidents before they occur.

• Centralize documentation: Keep certifications, permits and training records in one system to reduce the risk of expired or missing documents. This workflow is exactly what EAM platforms such as IBM Maximo are designed to support.

• Audit regularly: Conduct scheduled and unannounced inspections, which can help reinforce consistent safety practices over time.

• Follow up after incidents: Investigate the root cause of an incident and share lessons learned across all contractors working for the host company.

Common contractor safety challenges include inconsistent standards, limited visibility into performance, high turnover, multi-employer coordination and balancing oversight with efficiency:

• Inconsistent standards across contractors: A host company might use contractors from multiple employers, which can make it hard to maintain one consistent standard across the worksite. A more effective approach is to standardize expectations, training requirements and communication channels.

• Limited visibility into contractor performance: The lack of a centralized system for monitoring contractor performance makes it challenging to track safety records, certifications and incident history across every contractor a company works with. Organizations can improve visibility with a single system that organizes certifications, records and performance data.

• High contractor turnover: Companies often hire contractors regularly and have frequent crew turnover, which can result in missed orientation and site-specific training. Host companies should require orientation and complete site-specific training, no matter how often the crew is changing.

• Balancing oversight with efficiency: Managing contractor risks is a priority but should not create avoidable delays. Striking the proper balance requires efficient, technology-driven processes that support planning for construction safety, electrical safety and fire prevention.

A company can evaluate its contractor safety management program by using lagging and leading indicators.

A lagging indicator or reactive metric, reflects outcomes that have already occurred, while a leading indicator helps to evaluate effectiveness before an incident happens. Using both helps organizations move from reactive reporting to proactive risk management.

• Total recordable incident rate (TRIR): The rate of OSHA-recordable work-related injuries and illnesses.

• Lost time injury rate (LTIR): The rate of injuries that result in days away from work.

• Days away, restricted or transferred rate (DART): A measure of the severity of injuries by tracking days the contractor cannot work or had to be reassigned.

• OSHA citation rate: The rate of how frequently regulatory bodies issue safety violations or penalties.

• Hazard reporting rates: The volume of potential dangers or unsafe behaviors identified by contractors.

• Corrective action closure times: The number of days it takes the organization or contractor to close identified issues.

• Pre-task plan completion: The rate at which contractors complete daily job hazard analyses (JHAs) and review critical controls.

• Equipment inspection compliance: Rate of completion for routine inspections on scaffolding, fall protection and heavy machinery, when applicable.

• Corrective action completion rate: The rate at which identified issues are resolved and verified.