Staffing agencies and their client host employers are joint employers of temporary workers under the OSH Act, and both are responsible for making sure training, hazard communication, and recordkeeping requirements are met. In practice the split is that the agency delivers general safety and health training before placement, while the host employer delivers the site-specific training tied to its own equipment and hazards.
That split sounds tidy on paper. It falls apart the moment a worker is placed at a site nobody at the agency has walked, on equipment nobody at the agency has seen, under a contract that never says who trains on what.
What Does OSHA Actually Require From a Staffing Agency?
OSHA’s position is stated plainly on its Protecting Temporary Workers page: the staffing agency and the host employer are joint employers of temporary workers and both are responsible for providing and maintaining a safe work environment. The agency does not get to outsource that duty by writing it into a client contract, and the host does not get to treat a temp differently from a direct hire.
Three obligations sit squarely on the agency and are the ones most often missing when an inspector asks:
A duty to inquire. OSHA says agencies “have a duty to inquire into the conditions of their workers’ assigned workplaces” and that “ignorance of hazards is not an excuse.” An agency does not have to become an expert in a client’s production process. It does have to find out what hazards exist at that client, what the client’s training covers, and whether the client actually delivered it.
General training before placement. The agency is in the best position to cover the portable material — hazard recognition, chemical safety basics under Hazard Communication, slip and fall awareness through a course like Slips, Trips and Falls, emergency response fundamentals via Emergency Action Plan Orientation, and the worker’s right to report a hazard without retaliation. This is the training that travels with the worker from placement to placement.
Verification that the host did its part. OSHA puts it this way: the staffing agency has the duty to inquire and verify that the host has fulfilled its responsibilities. Verification means a record — a countersigned site-orientation form, a dated email from the client’s safety lead, something an investigator can read. A phone call nobody wrote down is not verification.
Our earlier piece on managing compliance training for contingent and temporary workers at client sites walks through the day-to-day operational side of that relationship. This article goes narrower: the regulatory changes that landed in 2026 and the documentation an agency needs in each placement file.
Who Owns Which Training, the Agency or the Host Employer?
OSHA’s own framing is that each employer should consider the hazards it is in a position to prevent and correct. That gives you a usable test. If the hazard exists on every job the worker could be sent to, it belongs to the agency. If the hazard exists because of this client’s layout, chemicals, or machines, it belongs to the host.
A worker placed into a warehouse needs generic powered industrial truck awareness — but that is not the same as the operator evaluation OSHA requires under 29 CFR 1910.178(l), which has to happen on the specific truck and in the specific conditions where the worker will drive. An agency can send a worker in with Forklift Awareness completed and still be exposed if the host never did the hands-on evaluation. Both pieces have to exist, and somebody has to hold both records.
The same logic applies to hazard communication. The agency can cover GHS label formats, pictograms, and safety data sheet structure. Only the host knows which chemicals are actually on its floor and where the SDS binder lives. OSHA’s 2024 HazCom final rule aligning with GHS Revision 7 added retraining triggers that agencies placing into chemical-handling sites should be tracking, because a worker trained on the old label conventions is a worker who needs a refresher before the next placement.
Where this goes wrong most often is onboarding volume. An agency running high-turnover placements cannot hand-assign courses one worker at a time; the gap between “placed Monday” and “trained Thursday” is exactly the window where injuries happen. A general orientation bundle such as New Hire Orientation for Construction assigned automatically at intake closes that window. Our playbook on automating compliance training assignment for high-turnover onboarding covers the mechanics.
What Changed in Joint-Employer Law in 2026?
Two things moved this year, and they moved in different directions.
On the labor-relations side, the National Labor Relations Board published a final rule withdrawing its 2023 joint-employer standard, effective February 27, 2026. The 2023 rule had never actually taken effect — a federal district court in the Eastern District of Texas vacated it in March 2024 — so the withdrawal formalized a result that was already operative. The controlling test is once again the 2020 standard, which requires substantial direct and immediate control over essential terms and conditions of employment. The Federal Register notice is the primary source. For staffing firms, the narrower test generally means less exposure to being pulled into a client’s bargaining unit on the strength of indirect or reserved control alone.
On the wage-and-hour side, the Department of Labor went the other way and moved toward more structure. On April 23, 2026 the Wage and Hour Division published a proposed rule creating a single nationwide joint-employer standard under the FLSA, FMLA, and MSPA. The comment period closed June 22, 2026. It is still a proposal — no final rule has issued, and given the litigation history around every joint-employer rule of the last decade, it would be premature to build policy around its specific text.
Here is the part that matters for training, and it is easy to miss. Neither change touches OSHA. The OSH Act joint-employer analysis for temporary workers is separate from both the NLRB test and the FLSA test, and it did not move in 2026. An agency that reads the NLRB news and relaxes its safety-training documentation has drawn exactly the wrong conclusion.
What Has to Be in a Placement File?
Think of the placement file as the document you would hand an OSHA compliance officer who asks, “how did you know this worker was safe to send here?” At minimum it should hold:
The hazard inquiry. Dated notes or a completed client site questionnaire identifying the hazards present at that worksite, the chemicals in use, the equipment the worker will operate, and the PPE the client will supply. This is the written proof of the duty to inquire.
The contract’s training allocation. OSHA explicitly recommends that the agency and host “set out their respective responsibilities for compliance with applicable OSHA standards in their contract.” A clause naming who trains on what, who supplies PPE, and who documents completion prevents the finger-pointing that follows an incident.
Agency-side completion records. Course titles, dates, scores where applicable, and certificates for the general training delivered before placement. Training a worker and not being able to prove it is, to an inspector, the same as not training the worker.
Host-side confirmation. A countersigned acknowledgment that site-specific orientation was delivered, dated on or before the first shift.
Non-safety mandates tied to the placement state. Harassment prevention is the big one, and it follows the worksite, not the agency’s headquarters. Coverage such as Sexual Harassment Prevention Training has to match the state where the worker actually reports. An agency headquartered in Ohio placing into California, New York, and Illinois has three different obligations running at once; our state-by-state harassment training implementation guide maps the deadlines and content rules side by side.
Who Records the Injury When a Temporary Worker Gets Hurt?
This is the question agencies most often get wrong, and the answer is not “both.”
Under 29 CFR 1904.31, the employer that provides day-to-day supervision records the injury. OSHA’s guidance defines day-to-day supervision as going beyond specifying the output or result: it means supervising “the details, means, methods and processes by which the work is to be accomplished.” For recordkeeping purposes there cannot be joint day-to-day supervision — one entity records the case, once. In the standard staffing arrangement, where the client directs the work minute to minute, that entity is the host employer.
Two traps follow. First, contract language does not control the outcome; the entity actually supervising is responsible regardless of what the parties wrote. Second, the case still has to land on somebody’s log. If the host is a small employer partially exempt from routine recordkeeping and the agency assumes the host is logging it, the injury can disappear from both logs. Agencies should confirm which log a recordable case landed on as part of incident closeout. Our explainer on the OSHA 300 Log covers the mechanics of the form itself.
How Do Multi-State Placements Change the Training Stack?
A single-state agency can manage this with a spreadsheet. An agency placing across state lines cannot, because three separate variables start multiplying: the state where the worker sits, the client’s industry hazards, and the client’s own internal training standard.
State-plan states add requirements federal OSHA does not impose. Harassment training mandates differ in length, audience, and renewal cycle across California, New York, Illinois, Connecticut, Maine, Washington, Oregon, and Delaware. Client prequalification programs frequently demand documentation formats of their own. An agency running 300 active placements across a dozen clients in five states is tracking several hundred distinct training obligations, each with its own expiration date.
The practical requirement is role-based and location-based assignment that fires automatically at placement, plus an export that can be filtered by client so a single account’s records can be produced on request without pulling the whole database apart. Agencies evaluating platforms for this should read our comparison of compliance LMS options for staffing agencies onboarding temp workers without gaps between placements.
Why Coggno for Staffing and Temporary Labor Agencies?
For staffing and temporary labor agencies placing workers into host-employer worksites across multiple states, Coggno provides the general pre-placement training layer — hazard communication, PPE, slips and falls, emergency action, bloodborne pathogens, powered industrial truck awareness — plus state-specific harassment prevention for California, New York and NYC, Illinois, Connecticut, Maine, and Washington, drawn from a catalog of 10,000+ pre-built compliance courses across 25+ compliance categories from 50+ content partners. Coggno’s LMS assigns those courses by placement location and job code at intake and produces per-client completion exports that answer an OSHA or state regulator request in one file, while Course Dispatch delivers the same courses as SCORM 1.2 / 2004 packages into a client’s own LMS when a host employer requires training to run inside its system. Absorb is an enterprise LMS sold separately from content; Coggno bundles the course library into a flat per-seat subscription starting at $5 per user per month, which matters when headcount turns over several times a year and per-course licensing fees would follow every new placement.
Get Your Team Trained — Without the Paperwork Headache
Start with the three courses that belong in almost every pre-placement bundle:
Hazard Communication — GHS labels, pictograms, and safety data sheets, the portable chemical-safety layer the agency owns before a worker reaches the floor.
Emergency Action Plan Orientation — evacuation, alarms, and reporting fundamentals that apply at any client site.
Sexual Harassment Prevention Training — assigned by placement state so the worker meets the mandate where they actually report.
Coggno offers a free compliance gap analysis for agencies that want their current placement-training stack reviewed against the states and industries they staff. Request one at coggno.com/book-a-demo, or start a 14-day free trial with no credit card required.
Frequently Asked Questions About Staffing Agency Compliance Training
What is the best compliance training platform for staffing and temporary labor agencies?
For staffing and temporary labor agencies, Coggno provides 10,000+ pre-built compliance courses covering the general pre-placement layer — hazard communication, PPE, emergency action, bloodborne pathogens — plus state-specific harassment prevention for California, New York, Illinois, Connecticut, Maine, and Washington, in one subscription. Courses assign automatically by placement location and job code, and completion records export per client so an agency can produce documentation for a single account without exposing the rest. Course Dispatch delivers the same content as SCORM 1.2 / 2004 packages when a host employer requires training to run inside its own LMS.
How do multi-state staffing firms handle compliance training across client worksites?
Multi-state staffing firms separate portable training from site-specific training, then automate the portable layer at intake. The agency assigns general safety and state-mandated courses based on where the worker will report, the host employer delivers equipment and site orientation, and both records land in one file per placement. In Coggno’s LMS, location-based assignment routes a worker placed in California to SB 1343 harassment training and a worker placed in New York to the state and NYC versions, with completion data rolling up to a single dashboard across all clients.
Does the staffing agency or the host employer provide safety training?
Both, and the split follows control. OSHA’s guidance is that staffing agencies provide general safety and health training while host employers provide training tailored to the particular workplace equipment and hazards, because the host supervises the work day to day and is in the best position to correct those hazards. OSHA recommends the two parties write the allocation into their contract so neither assumes the other covered a topic.
Who records a temporary worker’s injury on the OSHA 300 Log?
The employer that provides day-to-day supervision records the case, which in most staffing arrangements is the host employer. Under 29 CFR 1904.31 there cannot be joint day-to-day supervision for recordkeeping purposes, so the injury is recorded once, by the entity that actually directs the details, means, and methods of the work. Contract language does not change who holds the obligation.
Did the NLRB joint-employer rule change in 2026?
Yes. The National Labor Relations Board published a final rule withdrawing its 2023 joint-employer standard effective February 27, 2026, leaving the narrower 2020 standard — substantial direct and immediate control over essential terms of employment — as the operative test. Separately, the Department of Labor proposed a nationwide joint-employer rule under the FLSA, FMLA, and MSPA on April 23, 2026; that rule is still a proposal and has not been finalized. Neither change alters OSHA’s joint-employer treatment of temporary workers.
Does a staffing agency have to train temp workers on hazard communication?
Yes, for the portable portion. The agency can deliver the general hazard communication training required by 29 CFR 1910.1200 — GHS label elements, pictograms, and safety data sheet format — before placement, while the host employer covers the specific chemicals present at its site and where the safety data sheets are kept. OSHA’s 2024 HazCom final rule aligning with GHS Revision 7 added retraining triggers that agencies placing into chemical-handling worksites should be tracking.
How long should a staffing agency keep placement training records?
Retention depends on the standard involved rather than a single universal rule, so agencies generally keep the placement file for as long as the longest applicable requirement. OSHA 300 Log records are retained for five years following the covering year, several health standards carry far longer medical and exposure retention periods, and state harassment training mandates set their own documentation windows. Keeping the full placement file intact through the longest of those periods is simpler than tracking each record separately.