Lung Cancer Screening Expansion Act of 2025

This bill requires all health insurers and federal health programs to cover annual lung cancer screenings (using low-dose CT scans or equivalent) with no out-of-pocket costs for eligible adults. It directly affects adults aged 50-80 who are deemed at increased lung cancer risk by their healthcare provider due to personal, environmental, or family factors. The law prohibits prior authorization, step-therapy, or annual screening limits stricter than one per year, ensuring immediate access to screening without administrative barriers. Federal health agencies must issue implementing rules within 180 days of the bill's enactment to ensure compliance.