Temporary and contract workers present a specific compliance gap in occupational hearing conservation programs. Many employers assume that responsibility for temporary workers’ hearing conservation programs sits with the staffing agency — not the host facility. OSHA 1910.95 does not support this assumption. According to the CDC, approximately 22 million U.S. workers are exposed to hazardous occupational noise annually — and a significant share of them work at facilities where they arrived through a staffing agency, with no audiometric baseline, no HPD training, and no enrollment in the host employer’s HCP. This guide explains who is responsible, what the requirements are, and what the citation and liability exposure looks like when temp worker HCP coverage is absent.
A stamping facility using temporary workers through a staffing agency assumed the agency was responsible for their HCP enrollment. After an OSHA inspection, citations were issued to the host facility — not the agency — because the facility controlled the work environment and noise exposure. The facility had no audiometric records for any temp worker and had not provided them with hearing protection. OSHA treats the host employer as responsible for HCP compliance for temporary workers regardless of the staffing arrangement.
Who Is Responsible: Host Employer vs. Staffing Agency
When a staffing agency places workers at a host employer’s facility, both the agency and the host employer may have some OSHA obligations — but the division is not equal for noise exposure and HCP requirements. The fundamental analysis under OSHA’s multi-employer worksite doctrine is: who controls the hazard?
For hearing conservation program obligations under 1910.95, the host employer controls the hazard (the noise environment) and controls the conditions under which the work is performed. The staffing agency cannot reduce the noise levels in the host facility, cannot determine which areas meet the action level, and is not present to ensure HPDs are worn correctly or audiograms are conducted. This functional control analysis leads to a clear result: the host employer bears primary 1910.95 compliance obligations for temporary workers placed on their premises.
OSHA’s Position on Temporary Workers
OSHA has been explicit that host employers are responsible for ensuring that workers they expose to hazards on their premises — including temporary workers — are protected under applicable standards. OSHA’s temporary worker enforcement policy is clear:
- The host employer is responsible for compliance with standards that govern the conditions of the work being performed
- Staffing contracts that purport to assign OSHA compliance obligations to the agency do not transfer the legal obligation from the controlling employer
- If a temporary worker is injured, exposed to a hazard, or found to have been working without required protections at a host facility, the citation will typically be issued against the host employer
A staffing agreement that states “the staffing agency shall be responsible for all OSHA compliance” does not transfer 1910.95 obligations to the agency. OSHA citations are issued to the employer who controls the condition giving rise to the violation — in noise exposure cases, that is the host employer. Employers who have relied on staffing contract language to avoid HCP compliance for temp workers are potentially carrying unbooked OSHA and WC liability.
Baseline Audiograms for Temporary Workers
OSHA 1910.95(g)(5) requires that a baseline audiogram be established within 6 months of first noise exposure for enrolled workers. For temporary workers entering noise-exposed roles, this requirement applies from the date they begin work in the noise-exposed position at the host facility.
Without a baseline audiogram for a temporary worker, the host employer cannot:
- Determine whether any subsequent threshold shift occurred during their assignment or was pre-existing
- Establish STS against a reference baseline for OSHA STS determination purposes
- Defend against a WC hearing loss claim by demonstrating the worker’s hearing status when they arrived
Pre-employment audiograms — conducted before the worker begins the noise-exposed assignment — are more valuable than the 6-month OSHA-required baseline because they document the worker’s hearing before any occupational exposure at the current employer. Host employers who enroll temp workers and obtain pre-placement audiograms close the most significant WC defense gap.
HPD Provision and Training
OSHA 1910.95(i) requires that hearing protectors be made available at no cost to all enrolled workers. “Available at no cost” means available to the workers who need them — including temporary workers present in the noise-exposed areas of the host facility. A temporary worker who arrives at a host facility without HPDs must be provided with them by the host employer before entering areas that require their use.
HPD training is similarly the host employer’s obligation — the temporary worker is in the host employer’s facility, using the host employer’s noise environment, and the host employer is in the best position to conduct or verify training on the specific HPDs available in that environment.
Audiometric Record Ownership
Audiometric records created for a temporary worker placed at a host facility belong to the employing entity under OSHA 1910.95(m) — and the question of which entity “employs” the worker for OSHA purposes depends on the structure of the staffing arrangement. In practice, the safest approach is for the host employer to maintain copies of all audiometric testing conducted for workers at their facility, regardless of which entity appears as the employer of record on the audiometric records.
This is particularly important because the audiometric record is the WC defense document. If a temporary worker files a claim against the host employer years after their assignment ended, the host employer needs the audiometric history from that assignment — regardless of what the staffing contract said about record ownership.
Staffing Contract Language
Staffing agreements should address HCP compliance explicitly, but employers should understand that contractual language cannot transfer OSHA liability away from the controlling employer. Useful contractual provisions include:
- Shared audiometric testing infrastructure: the host employer’s HCP vendor enrolls placed workers, with the host employer retaining copies of all records
- Pre-placement audiogram requirement: the staffing agency provides a baseline audiogram before placement, with the host employer retaining a copy
- HPD training documentation: confirmation that placed workers have received or will receive HPD training before beginning noise-exposed work
Frequently Asked Questions
The host employer who controls the noise environment bears primary 1910.95 HCP obligations for temporary workers placed on their premises. OSHA citations for HCP violations involving temp workers are issued to the host employer, not the staffing agency. Staffing contracts cannot transfer this obligation.
No. The staffing agency does not control the facility’s noise environment and is not in a position to comply with 1910.95’s testing and HPD requirements on the host employer’s premises. The host employer is responsible for enrolling, testing, providing HPDs, and training temporary workers placed in noise-exposed roles.
OSHA requires a baseline within 6 months of first exposure. Pre-placement audiograms (before the assignment begins) are more valuable because they document hearing before any occupational exposure at the host facility — closing the WC defense gap for the host employer.
HCP enrollment for your entire workforce — employees and placed workers
Soundtrace’s cloud-connected platform enrolls all noise-exposed workers at your facility — permanent staff, contractors, and placed temp workers — with the same baseline audiogram, annual testing, and PS review infrastructure.
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