The Secretary may provide by regulation for leave with pay:
(1) for jury service;
(2) to attend employee organization events approved for this purpose by the Secretary;
(3) up to 15 days for military training or active military duty in a reserve unit of the armed forces or in the organized militia;
(4) unless the employee is a party to the action or a paid witness, to appear in compliance with a subpoena:
(i) in court;
(ii) before a grand jury;
(iii) before an administrative unit; or
(iv) for a deposition;
(5) for administrative leave for the purpose of immediately removing an employee from the work site, if the employee:
(i) poses a threat to self, another individual, or State property; or
(ii) is incapable of properly performing the employee’s duties because of extraordinary circumstances; and
(6) any other paid leave the Secretary deems necessary.