The main purpose of this legislation, known as the Bottles and Breastfeeding Equipment Screening Enhancement Act, is to improve the safety and hygiene of breast milk and baby formula during airport security screenings. The law aims to ensure that these essential items are handled properly to minimize the risk of contamination when they are screened by security personnel. Key provisions of the law require the Transportation Security Administration (TSA) to create and update guidelines for the hygienic handling of breast milk, baby formula, and related items.