Definition
A joint employer situation exists when two businesses share or co-determine a worker's essential terms of employment, such as hiring, pay, scheduling or supervision. In staffing, the agency and the client can both be responsible under some laws. Wage and hour rules, safety duties and labor law each use their own tests, and the federal standards have shifted over the years. In practice, OSHA treats safety as a shared duty: the client controls the worksite, while the agency trains and follows up.
This definition is general information, not legal, tax or financial advice. Rules vary by state and change over time.