New Jersey state officials said the Labor Department’s recent opinion letter outlining how to determine whether a worker is an employee or a contractor has “zero effect” on the state’s rigid standards, which provide more structure than the nebulous federal law.

The federal opinion letter won’t affect state laws regarding benefits such as wage payment, minimum wage, overtime, and equal pay, New Jersey Department of Labor and Workforce Development Commissioner Robert Asaro-Angelo said in a statement. The state employs a three-factor analysis known as the “ABC test,” a standard more rigorous than the guidance outlined in the April 29 opinion...