N.J. Admin. Code § 12:17-15.1
The following words and terms, when used in this subchapter, shall have the following meanings, unless the context clearly indicates otherwise:
"Continuing employment" means employment offered no later than the next business day following the end of the last assignment, within the scope of a written agreement or, if no written agreement exists, under similar terms and conditions of the last assignment; and with a definite starting date of no more than four weeks from the end date of the last assignment.
"Temporary help service firm" means a business which consists of employing individuals directly or indirectly for the purpose of assigning the employed individuals to assist the firm's customers in the handling of the customers' temporary, excess or special workloads, and who, in addition to the payment of wages or salaries to the employed individuals, pays Federal Social Security taxes and State and Federal unemployment insurance taxes and carries workers' compensation insurance as required by State law. A temporary help service firm is required to comply with the provision of 56:8-1 et seq.
"Written agreement" means a signed understanding between a temporary help service firm and the employee which outlines the scope of employment and includes the general type of work to be performed, salary parameters, and acceptable commuting distance for assignments. The agreement shall require that the employee contact the temporary help service firm upon completion of an assignment and state that unemployment benefits may be denied for failure to fulfill this obligation.
N.J. Admin. Code § 12:17-15.1