This legislation amends the Bottles and Breastfeeding Equipment Screening Act to enhance the hygienic handling of breast milk, baby formula, purified deionized water for infants, and juice during aviation security screening. It mandates the Transportation Security Administration (TSA) Administrator to issue or update guidance within 90 days of enactment, and every five years thereafter, to minimize the risk of contamination for these items and their cooling accessories during re-screening or additional testing. The required guidance must be developed in consultation with nationally recognized maternal health organizations and ensure strict adherence to established hygienic standards. These standards will apply to both TSA security screening personnel and employees of private security companies conducting screenings. Furthermore, the bill stipulates that within one year, the Inspector General of the Department of Homeland Security must conduct an audit to assess compliance with these new hygienic handling requirements. This audit will also examine the effectiveness of various screening technologies, such as bottled liquid scanners, on these specific items and track the rate at which they are denied entry into sterile areas.