; and (II) the impact such alteration has on the capability of the Coast Guard to conduct its mission in the transit zone referred to in subsection (a)(18). (d) Exigent circumstances (1) In general Notwithstanding subsection (b), the Secretary may deploy the capabilities referred to in subsection (a) in a manner that is inconsistent with the requirements specified in such subsection if, after the Secretary has deployed at least 25 percent of such capabilities, the Secretary determines that exigent circumstances demand such an inconsistent deployment or that such an inconsistent deployment is vital to the national security interests of the United States. (2) Notification Not later than 30 days after making a determination under paragraph (1), the Secretary shall notify the Committee on Homeland Security of the House of Representatives and the Committee on Homeland Security and Governmental Affairs of the Senate of such determination and provide a detailed justification for such determination. 1115. Deployment of assets (a) Joint briefing Not later than March 1 of each year, the Secretary (or the Secretary’s designees) shall conduct a joint, comprehensive briefing for all Members of the appropriate congressional committees on the deployment of Department of Homeland Security personnel and assets along the borders of the United States. (b) Content Each briefing conducted pursuant to shall include— (1) the number and types of assets and personnel to be deployed in each sector and district; (2) the cause for any change in deployments of assets and personnel in each sector and district