Final answer:
The only exception to the New Jersey law against discrimination is a bona fide occupational qualification (BFOQ), which allows employers to discriminate based on a protected characteristic if it is essential to the job performance.
Step-by-step explanation:
The only exception to the New Jersey law against discrimination is when an employer can demonstrate a bona fide occupational qualification (BFOQ) that is reasonably necessary to the normal operation of a particular business or enterprise. A BFOQ allows an employer to discriminate on the basis of a protected characteristic if it can be shown that it is essential to the job performance. For example, it may be permissible to require a certain height or weight for a job in law enforcement.