To ensure national uniformity with respect to certain requirements relating to preterm infant formula, and for other purposes.

HR 2300 requires the FDA to study the availability of preterm infant formula and state/federal regulations governing it, with a report due within two years. The bill temporarily prevents states from enforcing their own rules on preterm infant formula (like packaging, labeling, or safety standards) for two years, ensuring federal rules apply uniformly. This preemption covers most aspects of the formula's development, distribution, and safety, but allows state civil/criminal cases for "willful misconduct" causing serious harm. The law directly affects formula manufacturers and state governments that previously had independent regulatory requirements for this specialized infant product.