A5. OSHA considers personnel providers, who send their own employees to work at other facilities, to be employers whose employees may be exposed to hazards. Because your company maintains a continuing relationship with its employees, but another employer (your client) creates and controls the hazard, there is a shared responsibility for assuring that your employees are protected from workplace hazards. The client employer has the primary responsibility for such protection, but the “lessor employer” likewise has a responsibility under the Occupational Safety and Health Act. In the context of OSHA’s standard on Bloodborne Pathogens, 29 CFR 1910.1030, your company would be required, for example, to provide the general training outlined in the standard; ensure that employees are provided with the required vaccinations; and provide proper follow-up evaluations following an exposure incident. Your clients would be responsible, for example, for providing site-specific training and personal protective equipment, and would have the primary responsibility regarding the control of potential exposure conditions. The client, of course, may specify what qualifications are required for supplied personnel, including vaccination status. It is certainly in the interest of the lessor employer to ensure that all steps required under the standard have been taken by the client employer to ensure a safe and healthful workplace for the leased employees. Toward that end, your contracts with your clients should clearly describe the responsibilities of both parties in order to ensure that all requirements of the standard are met.