Except as provided in PCC 3.92.110, all claims for reimbursement must be submitted to the Finance Department within 30 days, or immediately upon return from travel, on a form approved by the Finance Department, signed by the claimant, and approved by the claimant's department director or designee. Any person who knowingly approves or pays or causes to be approved or paid a false or untrue claim shall be punishable and civilly liable under RCW 42.24.110.