The FDA published its Final Guidance on New Dietary Ingredient Notification (NDIN) Procedures and Timeframes, updating and finalizing Section V of its revised 2016 Draft Guidance. The guidance details who should submit NDINs, what information they should contain, and offers the option for manufacturers to meet with the FDA for preliminary feedback. NDINs are required for dietary ingredients not marketed in the US before October 15, 1994, and must be submitted 75 days before marketing a new dietary ingredient. The guidance encourages electronic submissions and clarifies that acknowledgment without objection does not equate to FDA's determination of safety.

A bipartisan group of Congressional Representatives introduced the Pet Food Uniform Regulatory Reform Act of 2024 (PURR Act) in the U.S. House on February 15. The bill aims to establish consistent national standards for pet food regulation, replacing the current state and federal system. It proposes amendments to the FD&C Act, allowing certain marketing terms without FDA premarket approval, and mandates science-based reviews of pet food ingredients by the FDA’s Center for Veterinary Medicine. The bill, sponsored by Rep. Jake LaTurner and four cosponsors, has been referred to the House Committee on Energy and Commerce.