The "Safety Starts at the Top Act of 2025" aims to enhance aviation safety by revising the qualifications for Organization Designation Authorization (ODA) holders . Specifically, it amends title 49 of the United States Code to mandate new board of directors' requirements for large ODA holders. Entities with at least $15,000,000,000 in annual gross revenue , authorized to perform functions delegated by the FAA, must annually certify that their board includes two representatives from labor organizations, with one from each union representing employees involved in aircraft design and manufacturing. Additionally, their board must include two representatives with proven experience and demonstrable outcomes in aerospace safety . To ensure compliance, the bill directs the Administrator of the Federal Aviation Administration to rescind any existing ODA delegation within 90 days if the entity does not meet these newly established board composition requirements.