N.J. Stat. Ann. § 34:3A-7

No person shall dispense fuel at a gasoline station, unless the person is an attendant who has received instructions regarding the dispensing of fuel, had practical experience dispensing fuel under the direct supervision of an experienced operator for a period of not less than one full working day, and, upon examination at the end of that period, demonstrated his understanding of those instructions. The instructions shall include a full explanation of the prohibitions of section 3 of this act and any emergency procedures established pursuant to section 8 of this act.