New Jersey Statutes Title 4. Agriculture and Domestic Animals 4 § 12-41.13

No person purchasing milk or cream on the basis of its butter fat content shall use any weight, measure or butter fat test thereof other than the correct weight, measure, or butter fat test; nor shall such person have in his possession any inaccurate, defective or untrue weighing or measuring device; nor shall any such person make any misrepresentation as to any weight, measure or test. If investigation discloses tampering with samples taken for butter fat testing, the license of the sampler or tester charged with the proper care of such samples shall immediately be revoked or suspended by the director.