WDO/WDI in New Jersey

So, I have contacted the NJ Home Inspection Advisory Committee and the NJ DEP, yet no one can give me a straight answer, so I hope one of you guys can! Is there a certificate/license needed to perform WDO inspections in the state of New Jersey? I do NOT want to apply any pesticides, I just want to offer the inspection service along side of my other services. I know InterNACHI offers an online course, is this sufficient? Thanks in advance!