Effective: Cause of Airline Delay and Cancellation Categories Under Section 511(b) of the FAA Reauthorization Act of 2024

The document serves as a system-generated notification for users attempting to access FederalRegister.gov or eCFR.gov. It informs users that programmatic access is restricted due to aggressive automated scraping and directs developers to utilize official APIs for data retrieval. Users flagged as potentially automated are required to complete a CAPTCHA challenge to verify human status. The notice specifies that this security measure may be triggered periodically during browsing sessions. For users experiencing technical difficulties with the CAPTCHA or those requiring broader IP access, the document instructs them to use the 'Site Help' button located in the lower right corner of the interface.