38 U.S.C. § 728

1. (a)
   1. (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. (2)Such a prohibition shall be in addition to any other applicable penalty.
2. (b)For purposes of this section, the term “misuse” means—
   1. (1)splitting purchases;
   2. (2)exceeding applicable purchase card limits or purchase thresholds;
   3. (3)purchasing any unauthorized item;
   4. (4)using a purchase card without being an authorized purchase card holder; or
   5. (5)violating ethics standards.