; and (2) voluntary participation of representatives from the airline industry and their contractors and suppliers. (d) Meetings The working group shall meet not less than twice each year and may convene for additional meetings as needed. The group shall meet for a period of not less than 2 years. (e) Report The working group shall submit a report to the Secretary of Transportation that establishes voluntary guidelines for the resiliency of airline computer networks that handle operationally critical functions, best practices, and the conditions under which the working group may need to periodically meet or reconvene. 6. Improved accommodation of displaced passengers Not later than 1 year after the enactment of this Act, the Secretary of Transportation shall modify part 259 of title 14, Code of Federal Regulations to include the following: (1) Adoption of Plan Each covered carrier shall adopt a contingency plan for lengthy terminal delays for its scheduled flights at each large hub airport, medium hub airport, small hub airport and non-hub airport in the United States at which it operates or markets such air transportation service and shall adhere to its plan’s terms. (2) Contents of Plan Each contingency plan for any delay, cancellation, or misconnection, affecting a passenger who has been involuntarily denied boarding as a result of circumstances or an event within an air carrier’s control, as determined by the Administration of the Federal Aviation Administration (except in the case in which the flight crew determines that a passenger poses a danger to the safety of the flight), shall include, at a minimum, the following: (A) Essential needs An air carrier shall ensure that essential needs, including food, water, restroom facilities, and assistance in the case of a medical emergency are met. If the only available seating on the carrier’s next flight to the passenger’s destination is a higher class of service than purchased, the carrier shall transport the passenger on the flight at no additional cost. (B) Meal