The main purpose of this legislation is to update and enhance the Child Nutrition Act of 1966 to better support women, infants, and children who are affected by substance use disorders. The goal is to ensure that these vulnerable groups receive appropriate nutrition education and resources, particularly during pregnancy and early childhood. Key provisions of the legislation include a change in terminology from "drug abuse" to "substance use disorder" throughout the act. This shift reflects a more modern understanding of addiction and aims to reduce stigma.