How frequently is the AIM updated?

The Aeronautical Information Manual (AIM) is updated as needed, which allows for flexibility in addressing changes and improvements in aviation procedures, regulations, and safety information. Within this framework, certain sections of the AIM are reviewed and revised on a more frequent basis, specifically every 56 days. This approach ensures that the most current and relevant information is readily accessible to pilots and aviation personnel, enabling them to make informed decisions based on the latest guidelines and practices.

The fact that updates occur on an as-needed basis, with specific parts revised at regular intervals, supports the dynamic nature of aviation regulation and the need to adapt to new developments, safety enhancements, and operational changes. This ensures that the AIM remains a reliable resource for the aviation community.

Updates that occur annually, monthly, or every five years do not reflect the AIM’s operational strategy. While an annual update may suggest a regular schedule, it does not account for the necessity of timely revisions based on emerging safety issues or regulatory changes.