Host employer and temporary worker OSHA responsibility: who owes what

Last updated 2026-07-11

What does OSHA actually say about temporary workers?

OSHA has no single standard written just for temporary workers. Instead, it applies the existing standards and the General Duty Clause of the Occupational Safety and Health Act (Section 5(a)(1)) to both the staffing agency and the host employer, treating them as joint employers.^[1] This joint-employer framework is not buried in some footnote. It is OSHA's stated enforcement position, spelled out in the agency's Temporary Worker Initiative (TWI), which began in 2013 and is still running.^[2]

Here is the short version. A worker gets hurt at your facility. That worker came through a staffing agency. OSHA will look at both companies, and both can be cited and fined.

Signing a staffing contract that names the agency as "solely responsible" for safety buys you nothing with OSHA. The agency's paperwork does not stop an inspection or a penalty at your door.

For a broader grounding in how OSHA's authority works, see our primer on osha.

What is the joint employer concept and why does it matter?

Joint employment means OSHA treats two separate companies as co-employers of the same worker, even when only one signs the checks. The staffing agency is the employer of record for payroll and HR. The host employer directs the work on the floor, controls the equipment, and owns the hazards. OSHA's position is that both relationships are real and both create legal duties.^[2]

Why does this bite in practice? Because the host employer cannot hand a temp a hard hat, point at a machine, and assume the agency covered the rest. Say that machine has an unguarded nip point and the worker loses a finger. The host will almost certainly draw a citation under 29 CFR 1910.212 (machine guarding) no matter what the contract says.^[3]

The agency can get cited too, if it never asked the host about hazards or skipped the general safety training before placement.

The lesson is simple. Contracts can divide the chores between the two companies. They cannot move OSHA liability away from the party that actually controls the hazard.

Which OSHA duties belong to the host employer?

The host employer owns almost everything tied to the physical worksite. Here is how OSHA divides it in its Temporary Worker Initiative bulletins:^[2]

Host Employer Responsibility	Regulatory Basis
Hazard-specific training (equipment, chemicals, processes at that site)	29 CFR 1910 subparts, General Duty Clause
Providing and paying for required PPE	29 CFR 1910.132
Site-specific emergency action plan communication	29 CFR 1910.38
Lockout/tagout training for the specific machines at the site	29 CFR 1910.147
Hazard communication: SDSs, labeling, chemical inventory at the site	29 CFR 1910.1200
Recording injuries and illnesses on the OSHA 300 log	29 CFR 1904.31
Providing medical surveillance where a standard requires it	Various 1910 standards

The host controls the day-to-day work, so OSHA hangs the day-to-day hazards on the host. A temp running a forklift in your warehouse gets the same forklift-specific training as your permanent drivers.^[4] The staffing agency's generic orientation video is not a defense. Our forklift certification guide covers what that training has to include.

Here is the part that surprises small businesses: PPE is the host's cost. Under 29 CFR 1910.132(h), employers provide required PPE at no charge to employees, and temp workers count as the host's employees for this purpose. You cannot push PPE purchasing onto the staffing agency and call yourself covered.^[5]

Which OSHA duties belong to the staffing agency?

The staffing agency carries fewer site-specific duties, but the duties it has are real and OSHA enforces them.

Start with general safety and health orientation before placement. The agency should cover general hazard awareness, workers' rights under OSHA, how to report an injury, and any industry-level hazards it knows about. This is not a full osha training course. It also cannot be a five-minute video and a checkbox.

Second, due diligence on the host. The agency has to ask what hazards exist at the site, what training the host will provide, and what PPE the job needs. If the host stonewalls or the agency has reason to think the place is unsafe, placing workers anyway creates liability.^[2]

Third, when the agency learns a host is not meeting OSHA obligations, it has to act. Acting means more than firing off an email. OSHA expects real corrective steps, up to and including pulling workers from the site.

Fourth, recordkeeping is shared. Under 29 CFR 1904.31, the host records the injury on its 300 log because it supervises the worker day-to-day. The agency still tracks injuries for its own safety program and may need to record them in certain situations.^[6] Both sides should call each other the moment a temp gets hurt.

Who records a temp worker's injury on the OSHA 300 log?

The host employer records it. Full stop.

Under 29 CFR 1904.31(b)(1), you record an injury or illness for any worker you supervise day-to-day, even if that worker draws a paycheck from someone else.^[6] The host directs the temp's daily tasks, so the host fills out the OSHA 300, 300A, and 301 forms.

The staffing agency still needs to know. A good staffing contract makes the host report any injury to the agency inside a set window, usually 24 hours. The agency needs that to manage its workers' compensation exposure and to judge whether its people are landing in unsafe spots.

For a walkthrough of the actual forms and the filing process, see our guide on filing an incident report.

One practical note. Recordkeeping errors on temp injuries are among the most common problems OSHA turns up when it inspects companies that use staffing agencies. Make sure your safety coordinator knows the rule before an inspector asks.

Does the host employer have to train temp workers the same as permanent employees?

Yes. OSHA's General Duty Clause and its specific training standards draw no line between permanent and temporary workers. A temp on a powered industrial truck gets the same training as a full-time driver under 29 CFR 1910.178(l).^[4] A temp exposed to hazardous chemicals gets the same hazard communication training as a permanent employee under 29 CFR 1910.1200(h).^[7] Our hazard communication article lays out what that training must cover.

Where hosts most often fall short:

• Assuming the agency "already trained" the worker on site-specific equipment. The agency cannot train anyone on a machine it has never seen.
• Skipping lockout/tagout authorization training because the temp is "only" doing general labor near the machines. If the worker is in the area during servicing, the LOTO standard applies. Our lockout tagout guide covers what that training requires.
• Training only in English when the worker's first language is something else. OSHA expects training in a language and format the worker actually understands.

The agency can help by running its own general safety training before placement. That does not touch the host's duty to train on site-specific hazards. Two different jobs.

Can a contract between the staffing agency and host employer shift OSHA liability?

A contract can clarify who does what. It cannot erase either party's OSHA liability.

OSHA said as much in its 2014 TWI guidance: "The key is to ensure that one or both of the employers implement the protective measures required by OSHA's standards."^[2] OSHA is not a party to your staffing contract and does not care how it reads. A hazard exists, a worker gets hurt, and OSHA cites whoever controlled the hazard. Both parties contributed? Both get cited.

That said, a well-drafted contract still earns its keep. It should spell out:

• Which party provides PPE (and pays for it)
• What hazard information the host hands over before workers arrive
• How fast the host must report injuries to the agency
• Who provides site-specific training, and when
• What the agency's right to inspect the worksite looks like

This contract will not shield you from OSHA. It does cut confusion, close gaps, and build a paper trail showing both parties took the work seriously. That trail can matter a lot during an inspection.

How does OSHA enforce these rules, and what are the penalties?

OSHA enforces temp worker protections through the Temporary Worker Initiative, which started in April 2013 and told inspectors to watch host employer compliance closely whenever temp workers are on site.^[2] Inspectors are trained to ask about temp training records, PPE, and injury rates during any inspection at a host location.

TWI citations follow the same penalty structure as any other OSHA citation. As of 2024, the maximum penalties are:^[8]

Violation Type	Maximum Penalty Per Instance
Serious	$16,131
Other-than-serious	$16,131
Willful or Repeated	$161,323

These numbers climb every year for inflation under the Federal Civil Penalties Inflation Adjustment Act. OSHA can issue separate citations to both the staffing agency and the host for the same violation when both contributed. The exposure adds up, it does not split.

Small businesses sometimes figure OSHA inspectors only bother large operations. Wrong. A fatality or serious injury triggers an inspection automatically, whatever the company size. And temp workers have historically been hurt at higher rates than permanent staff. Bureau of Labor Statistics data from its Survey of Occupational Injuries and Illnesses shows workers in temporary help services carrying a total recordable case rate that has run above the all-industry average in multiple years.^[9]

What should a host employer do before the first temp worker arrives on site?

Most trouble hides in the gap between placement and the first shift. Here is what to nail down before day one:

1. Tell the staffing agency the real hazards. Skip the vague job description. List the specific equipment, chemicals, tasks, and conditions the worker will hit. The agency cannot run a useful orientation without it.

2. Confirm in writing what training the agency provides and what training you provide. Document it in the staffing contract or a separate safety addendum.

3. Build site-specific training before the worker shows up. Emergency exit routes, equipment instruction, chemical hazards, PPE requirements for the role.

4. Have PPE ready on day one. Do not send someone to the floor while you go hunting for the right gloves.

5. Assign a floor contact. Temp workers need one person to bring safety questions and hazard reports to. A worker who does not know who to tell about a problem is a worker who gets hurt.

6. Make clear that temps have the same right to refuse unsafe work as permanent staff. OSHA's anti-retaliation provisions under Section 11(c) of the OSH Act cover temps too.^[1]

Need to document all of this in a written safety program fast? SafetyFolio's program generator walks you through site-specific hazards, training requirements, and temp worker protocols in about 15 minutes.

Are there state plan states with additional rules for temp workers?

Yes. Twenty-two states and two territories run their own OSHA-approved state plans, and some have adopted rules or guidance that go past federal OSHA on temporary workers.^[10]

Take California. Cal/OSHA's injury and illness prevention program (IIPP) standard under Title 8 CCR 3203 applies fully to temp workers and requires the host to fold temps into its IIPP.^[11] Washington State's Department of Labor and Industries has published its own guidance on staffing agency responsibilities that tracks the federal TWI but adds state-specific recordkeeping requirements.

If you operate in a state plan state, check that state's guidance rather than leaning on the federal TWI bulletins alone. Federal standards set the floor. State plans can go higher, and several do. OSHA's state plans page lists every state plan and links to its standards.^[10]

For a broader look at how state plans differ from federal OSHA, our osha overview covers the main differences.

What written documentation should both parties keep?

Documentation is what separates a reduced penalty from a willful violation. Both parties should keep records that show they took the work seriously.

Host employer records to keep:

• Training records for each temp worker: topic, date, trainer name, and employee acknowledgment signature. Standards like 29 CFR 1910.147 (LOTO) and 29 CFR 1910.178(l) (forklifts) require written records.^[4]
• PPE hazard assessments and written certifications under 29 CFR 1910.132(d)(2).^[5]
• OSHA 300 log entries for any temp injuries at your site.
• The safety addendum or the relevant provisions of the staffing contract.
• A record of any safety concerns passed to the staffing agency.

Staffing agency records to keep:

• The hazard information requested from each host before placement.
• General orientation training records for each worker.
• Any injury or near-miss reports received from hosts.
• A record of corrective action taken when a host was found non-compliant.

Keep training records for the length of the employment relationship and generally at least three years after. OSHA can pull records during an inspection, and a gap in the paperwork usually reads as a gap in the actual program.

How do you set up a practical joint safety program between a staffing agency and host employer?

The usual failure is not malice. It is a split-responsibility setup where each party assumes the other handled something, and nobody did.

A joint safety program does not have to be fancy. It has to be clear.

Start with a written safety addendum to the staffing agreement. One page works if it names who trains on what, who provides PPE, how injuries get reported, and who the safety contact is at each company. Both parties sign.

Next, the host should fold temp worker orientation into its standard new-hire onboarding. Treat it as a first-day task, not a someday task. The orientation should cover the site's emergency action plan under 29 CFR 1910.38, the chemical hazards present (using the actual SDS binder or system), and any equipment the worker will use or work near.^[7]

The agency should request a site visit before placing anyone. Even a 30-minute walkthrough surfaces hazards the host forgot to mention, and it builds a record that the agency did its due diligence.

Last, set up a channel for ongoing issues. A temp who reports a hazard to the agency's hotline should trigger a call between the agency's safety manager and the host's site supervisor that same day. Closed loops matter.

If you want a written program in place fast for your host employer side of this, SafetyFolio's safety program generator produces a customized, OSHA-aligned written program in about 15 minutes, including sections built for temporary worker management.

Frequently asked questions

Is a host employer responsible for a temp worker's OSHA training even if the staffing agency says it handles training?

Yes. The host owns all site-specific and equipment-specific training regardless of what the staffing contract says. A staffing agency cannot train workers on equipment it has never seen. OSHA's Temporary Worker Initiative is explicit: the host must ensure temp workers get the same training as permanent employees for the hazards they will actually face at that worksite.

Who pays for PPE for temporary workers, the staffing agency or the host employer?

The host pays. Under 29 CFR 1910.132(h), required PPE must be provided at no cost to employees. Because the host controls the worksite and the hazards that require PPE, OSHA holds the host responsible for buying and providing it. The staffing contract can require the agency to reimburse costs, but that is a private arrangement. OSHA still holds the host accountable.

Can both the staffing agency and the host employer be cited for the same violation?

Yes. OSHA's joint employer framework means both entities can receive separate citations and penalties for the same underlying violation when both contributed. Maximum penalties for serious violations are $16,131 per instance as of 2024. Willful or repeated violations can reach $161,323. The penalties are not split between the two companies; each faces its own citation.

Do OSHA's anti-retaliation protections apply to temp workers?

Yes. Section 11(c) of the OSH Act bars retaliation against any employee who exercises safety rights, including reporting hazards or refusing genuinely dangerous work. Temp workers have the same protections as permanent staff. Both the staffing agency and the host are prohibited from retaliating. The host should say so plainly to temp workers on day one.

Which employer records a temp worker's injury on the OSHA 300 log?

The host records it. Under 29 CFR 1904.31(b)(1), you record injuries for workers you supervise day-to-day, even if they are on another company's payroll. The staffing agency should be notified promptly, and the staffing contract should set the reporting timeline, but the 300 log entry belongs on the host's records.

What is OSHA's Temporary Worker Initiative?

The Temporary Worker Initiative (TWI) is an ongoing OSHA enforcement program that started in April 2013. It directs inspectors to focus on temp worker safety during inspections, trains them to ask about temp training and PPE, and has produced a series of industry-specific guidance bulletins. The TWI applies federal OSHA standards and the General Duty Clause to both staffing agencies and hosts as joint employers.

Does OSHA's temporary worker policy apply to all industries or only certain ones?

All industries. The joint employer framework applies wherever a staffing agency places workers with a host, including manufacturing, warehousing, construction, healthcare, and office settings. OSHA has issued TWI bulletins for specific sectors such as food processing and logging, but the underlying obligations, the General Duty Clause and specific OSHA standards, apply across every industry.

What happens if a temp worker is injured and the host employer has no training records for that worker?

Missing training records sharply worsen the host's position during an inspection. OSHA often reads absent documentation as evidence the training never happened. That gap can push a citation from serious to willful, which carries penalties up to $161,323 per violation. Create and keep signed training records for every temp worker, ideally before the worker starts the first shift.

Do state plan states have stricter rules for temporary workers than federal OSHA?

Some do. California's Cal/OSHA, for example, requires hosts to include temp workers in their Injury and Illness Prevention Program under Title 8 CCR 3203. Washington State has separate guidance with additional recordkeeping requirements. If you operate in any of the 22 state plan states or two territories, check that state's specific standards; they can go beyond federal OSHA.

Does the staffing agency have any right to inspect the host employer's worksite?

OSHA does not mandate it, but a responsible agency should conduct or request site visits before placing workers. The agency's due diligence obligation, established in OSHA's TWI guidance, means it cannot place workers in conditions it knows nothing about. Building a right-to-inspect clause into the staffing contract is a practical, defensible step for the agency's own liability management.

Are temp workers covered by OSHA's medical surveillance requirements, such as for hearing conservation or lead exposure?

Yes. If the work exposure triggers a medical surveillance requirement under a specific standard, such as 29 CFR 1910.95 for noise or 29 CFR 1910.1025 for lead, the host must include temp workers. Those standards do not exempt anyone based on employment status. As the controlling employer, the host arranges and pays for required surveillance.

What should a staffing agency do if a host employer refuses to provide hazard information before placement?

The agency should not place workers without it. OSHA's TWI guidance makes clear the agency has a duty to gather hazard information from the host before placement. A refusal is itself a red flag. The agency can decline the placement, escalate internally, or document the refusal and require the information before workers arrive. Placing workers blind creates shared liability.

How long should host employers keep training records for temp workers?

Keep records for the length of the work relationship plus at least three years after as a general practice. Some standards set their own retention periods: 29 CFR 1910.1020 requires employee medical records and certain exposure records to be kept for 30 years. For equipment-specific training like forklifts or LOTO, keep records at minimum until the worker's next retraining or through any applicable inspection lookback period.

Sources

1. OSHA, OSH Act of 1970, Section 5(a)(1) General Duty Clause: OSHA's General Duty Clause requires every employer to furnish a workplace free from recognized hazards; applies to host employers with temp workers.
2. OSHA, Temporary Worker Initiative (TWI) Bulletin Series: OSHA's TWI, launched April 2013, establishes the joint employer framework holding both staffing agencies and host employers responsible for temp worker safety.
3. OSHA, 29 CFR 1910.212 General Machine Guarding Standard: Machine guarding requirements apply to all employees at the host site, including temporary workers.
4. OSHA, 29 CFR 1910.178(l) Powered Industrial Trucks Training: Host employers must provide forklift training and evaluation for all operators, including temp workers, at the specific site before operation.
5. OSHA, 29 CFR 1910.132 PPE General Requirements: Employers must provide required PPE at no cost to employees, including temporary workers at the host site; written hazard assessment required.
6. OSHA, 29 CFR 1904.31 Covered Employees Recordkeeping: Under 29 CFR 1904.31(b)(1), the host employer who supervises a temp worker day-to-day must record that worker's injuries on its OSHA 300 log.
7. OSHA, 29 CFR 1910.1200 Hazard Communication Standard: Host employers must provide hazard communication training covering site-specific chemicals to temp workers under 29 CFR 1910.1200(h).
8. OSHA, OSHA Penalty Structure and Current Civil Penalty Amounts: As of 2024, OSHA maximum penalty for serious violations is $16,131 per instance; willful or repeated violations up to $161,323 per instance.
9. Bureau of Labor Statistics, Survey of Occupational Injuries and Illnesses: BLS data shows temporary help services workers have tracked above all-industry average total recordable case rates in multiple survey years.
10. OSHA, State Plans Overview: 22 states and 2 territories operate OSHA-approved state plans that can set standards exceeding federal OSHA requirements for temporary workers.
11. California Department of Industrial Relations, Title 8 CCR 3203 Injury and Illness Prevention Program: Cal/OSHA requires host employers to include temporary workers in their Injury and Illness Prevention Program under Title 8 CCR 3203.
12. OSHA, 29 CFR 1910.147 Control of Hazardous Energy (Lockout/Tagout): Host employers must provide LOTO training and authorization for temp workers who service or maintain equipment or work in areas where servicing occurs.
13. OSHA, 29 CFR 1910.38 Emergency Action Plans: Host employers must communicate emergency action plan details, including evacuation routes and procedures, to all employees including temp workers.