; or (B) in the Commonwealth of Puerto Rico, Guam, American Samoa, the Commonwealth of Northern Mariana Islands, and the United States Virgin Islands, a chief State election official designated by the State for purposes of this Act. (19) State law enforcement officer The term State law enforcement officer means the head of a State law enforcement agency, such as an attorney general. (20) Voting system The term voting system has the meaning given the term in section 301(b) of the Help America Vote Act of 2002 ( 52 U.S.C. 21081(b) ). 4. Information sharing (a) Designation of responsible Federal entity The Secretary shall have primary responsibility within the Federal Government for sharing information about election cybersecurity incidents, threats, and vul­ner­a­bil­i­ties with Federal entities and with election agencies. (b) Presumption of Federal information sharing to the department If a Federal entity receives information about an election cybersecurity incident, threat, or vulnerability, the Federal entity shall promptly share that information with the Department, unless the head of the entity (or a Senate-confirmed official designated by the head) makes a specific determination in writing that there is good cause to withhold the particular information. (c) Presumption of Federal and State information sharing from the department If the Department receives information about an election cybersecurity incident, threat, or vulnerability, the Department shall promptly share that information with— (1) the appropriate Federal entities; (2) all State election agencies; (3) to the maximum extent practicable, all election agencies that have requested ongoing updates on election cybersecurity incidents, threats, or vulnerabilities