of the Coast Guard to support surge operations using historical data from the 10-year period preceding the date of the report. (E) An assessment of the impact to operations of the Coast Guard by extended wait times or travel times to receive care or other issues identified by the report. 278. Comptroller General of the United States study and report on vertical evacuation for tsunamis at Coast Guard Station Grays Harbor, Washington (a) Study (1) In general The Comptroller General of the United States shall conduct a study that examines the potential use, in the event of a Cascadia subduction zone event, of a vertical evacuation of Coast Guard personnel stationed at United States Coast Guard Station Grays Harbor, Washington, and the dependents of such Coast Guard personnel housed in Coast Guard housing. (2) Elements The study required under paragraph (1) shall analyze the following: (A) The number of such personnel and dependents to be evacuated. (B) The resources available to conduct an evacuation, and the feasibility of a successful evacuation in a case in which inundation maps and timelines are available. (C) With the resources available, the amount of time needed to evacuate such personnel and dependents. (D) Any resource that is otherwise available within a reasonable walking distance to Station Grays Harbor and Coast Guard housing for Station Grays Harbor. (E) The benefit to the surrounding community of such a vertical evacuation. (F) The interoperability of the tsunami warning system with the Coast Guard communication systems at Station Grays Harbor and Coast Guard housing for Station Grays Harbor. (G) Current interagency coordination and communication policies in place for emergency responders to address a Cascadia subduction zone event. (b) Report Not later than 1 year after the date of the enactment of this Act, the Comptroller General shall submit to the Committee on Commerce, Science, and Transportation of the Senate and the Committee on Transportation and Infrastructure of the House of