((a)) ** .—**

((1)) The Secretary shall prohibit any employee of the Department who the Secretary or the Inspector General of the Department determines has knowingly misused a purchase card from serving as a purchase card holder or approving official.

((2)) Such a prohibition shall be in addition to any other applicable penalty.

((b)) ** .—** For purposes of this section, the term “misuse” means—

((1)) splitting purchases;

((2)) exceeding applicable purchase card limits or purchase thresholds;

((3)) purchasing any unauthorized item;

((4)) using a purchase card without being an authorized purchase card holder; or

((5)) violating ethics standards.