La. Civ. Code art. 3458 : Civil Code — OF THE DIFFERENT MODES OF ACQUIRING THE OWNERSHIP OF THINGS — PRESCRIPTION — GENERAL PRINCIPLES — PEREMPTION — Peremption; effect TEXT PDF Peremption is a period of time fixed by law for the existence of a right. Unless timely exercised, the right is extinguished upon the expiration of the peremptive period. La. C.C. § 3458 Acts 1982, No. 187, §1, eff. 1/1/1983.