The Louisiana Department of Health, the parish health units, the state health officer, and the parish health officers are exempt from the payment of all costs of court and stenographers' fees in any suit in which any one of them is a party. However, in such a case, costs may be charged against any party, other than one of the above, cast in judgment, as though the above had not been exempt and had actually paid costs.
La. Public Health and Safety § 40:31