Meal and refreshment costs should be appropriate for the occasion. Approved OSU travel per diem rates will be used to check for the reasonableness standard (the 15% allowable gratuity is included in the per diem rate).

  • Some units set specific thresholds for reimbursement, so check with your Business Center if you are unsure of your unit’s policy.
  • Meal expenses significantly exceeding the OSU per diem rates require documentation explaining the reason for the excess and the approval of the department head.