NJ A864

Classifies xylazine and its chemical variants as a Schedule III controlled dangerous substance in New Jersey, with an explicit exemption for veterinarians using it in professional practice

Makes illegal manufacture, distribution, or dispensing of xylazine a third-degree crime punishable by 3-5 years imprisonment and fines up to $25,000; possession or use carries fines up to $35,000

Applies enhanced penalties for offenses within 1,000 feet of schools, 500 feet of public spaces, or when distributing to minors or pregnant individuals

Addresses xylazine (street names "tranq," "tranq dope," "zombie drug") being mixed with opioids to enhance effects, noting it does not respond to naloxone overdose treatment

Directs the Director of the Division of Consumer Affairs to promulgate implementing rules and regulations, with the act taking effect immediately upon passage