Episode 50 - Contractor Responsibilities for Process Safety Management (PSM)

Episode 50 explains the Contractor Responsibilities element of OSHA’s Process Safety Management Standard (29 CFR 1910.119). Dr. Ayers focuses on what host employers must do, what contractors must do, and how failures in this element often lead to catastrophic incidents.

The core message: Contractors work inside your process — so their safety performance becomes your risk.

  🧭 Why Contractor Management Matters in PSM

Contractors often perform high‑risk tasks such as:

• Maintenance

• Repairs

• Turnarounds

• Construction

• Specialty work (e.g., welding, scaffolding, instrumentation)

These activities frequently involve opening the process, introducing ignition sources, or changing equipment, making contractor safety a critical part of process safety.

  🧑‍🏭 Host Employer Responsibilities

Episode 50 outlines several key obligations for facilities covered by PSM:

  1. Evaluate Contractor Safety Performance

Before hiring contractors, the host employer must assess:

• Injury and illness rates

• Safety programs and training

• Experience with similar processes

• Past performance and references

This is not a paperwork exercise — it’s a risk filter.

  2. Inform Contractors of Process Hazards

The host employer must communicate:

• Fire, explosion, and toxic release hazards

• Applicable emergency procedures

• Safe work practices

• Known hazards in the work area

Contractors cannot protect themselves from hazards they don’t know exist.

  3. Ensure Contractors Follow Site Safety Rules

This includes:

• Permitting systems (hot work, confined space, line breaking)

• PPE requirements

• Lockout/tagout

• Safe work practices

The host employer must verify, not assume, compliance.

  4. Maintain Injury and Illness Logs for Contractors

The facility must keep records of:

• Contractor injuries

• Contractor illnesses

• Contractor incidents related to PSM‑covered processes

These records help evaluate contractor performance over time.

  5. Periodically Evaluate Contractor Performance

The host employer must:

• Review contractor safety behavior

• Identify recurring issues

• Remove contractors who fail to meet expectations

Contractor oversight is an ongoing responsibility.

  🧰 Contractor Responsibilities

Contractors also have explicit duties under PSM:

  1. Train Their Employees

Contractors must ensure their workers are trained on:

• Hazards of the job

• Safe work practices

• Emergency procedures

• Applicable OSHA standards

The host employer is not responsible for training contractor employees on their own company’s procedures.

  2. Ensure Employees Follow Site Rules

Contractors must enforce:

• PPE requirements

• Permitting systems

• Lockout/tagout

• Hot work controls

• Confined space procedures

Failure to follow site rules is a major cause of contractor‑related incidents.

  3. Document and Communicate Hazards

Contractors must:

• Inform the host employer of hazards they encounter

• Report incidents and near misses

• Coordinate work activities with operations

Communication is a two‑way street.

  🧪 Common Failures Highlighted in the Episode

Dr. Ayers calls out typical breakdowns:

• Contractors not informed of process hazards

• Poor oversight during high‑risk work

• Contractors bypassing permits or procedures

• Inadequate training for contractor employees

• Host employers assuming contractors “know what they’re doing”

• Lack of coordination between operations and contractor crews

These failures often lead to fires, explosions, and toxic releases.

  🧑‍🏫 Leadership Responsibilities

Safety leaders must:

• Select contractors based on safety performance, not cost alone

• Communicate hazards clearly and consistently

• Verify contractor compliance with site rules

• Ensure strong coordination between operations and contractor teams

• Track contractor incidents and use them to improve oversight

• Treat contractors as part of the process safety system

The episode’s core message: You can outsource work — but you cannot outsource risk.