The rule excludes ten specific events from the 'Air Carrier' causal reporting code, meaning they are no longer considered within airlines' control. ^[1] The US Department of Transportation finalized a rule on 2026-09-05 that creates a new delay category under Section 511(b) of the FAA Reauthorization Act of 2024, effective October 19, 2026. ^[2] The ten largest US airlines offer meal vouchers for delays over three hours, and nine of them (excluding Frontier) provide hotel accommodation for controllable overnight delays. ^[3] The US Department of Transportation stated that the rule mandates that ten specific types of events be excluded from the 'Air Carrier' causal reporting code, which is reserved for circumstances within the carrier's control. ^[4] DOT expects passengers to receive fewer meal vouchers and hotel rooms because airline customer-service commitments apply only to controllable disruptions, and DOT described the lost benefits as 'a transfer of value from consumers back to air carriers.' ^[5] The rule implements a provision from the FAA Reauthorization Act of 2024, which instructed DOT to treat unscheduled maintenance that manifests outside a scheduled maintenance program and cannot be deferred as outside airline control. ^[6]