; related to improving critical infrastructure cybersecurity). (2) Covered cyber asset The term covered cyber asset means an information system or industrial control system that is essential to the operation of covered critical infrastructure. (3) Program Except as otherwise specifically provided, the term program means the program required by subsection (b). (4) Sector-specific agency The term sector-specific agency has the meaning given that term in Presidential Policy Directive-21, issued February 12, 2013 (related to critical infrastructure security and resilience), or any successor. (5) Voluntary participant The term voluntary participant means an entity eligible to participate in the program under subsection (b) that has voluntarily elected to participate in the program. (b) Requirement for program Not later than 180 days after the date of the enactment of this Act, the Under Secretary appointed pursuant to section 103(a)(1)(H) of the Homeland Security Act of 2002 ( 6 U.S.C. 113(a)(1)(H) ), in consultation with appropriate covered critical infrastructure and sector-specific agencies, shall carry out a program to provide assistance to covered critical infrastructure consistent with subsection (f). (c) Objective The objective of the program shall be to reduce the risk of regional or national catastrophic harm caused by a cyber attack against covered critical infrastructure. (d) Voluntary participation Participation in the program by covered critical infrastructure shall be on a voluntary basis. (e) Intelligence community participation (1) Coordination and management The Under Secretary for Intelligence and Analysis of the Department of Homeland Security shall coordinate and lead the provision of assistance from the appropriate elements of the intelligence community to the Under Secretary appointed pursuant to section 103(a)(1)(H) of the Homeland Security Act of 2002 ( 6 U.S.C. 113(a)(1)(H) ) and voluntary participants through the national cybersecurity and communications integration center established under