Administrative Procedure Act Article 121

The power to withdraw under article 117 hereof is exercisable within two years from the date on which the authority rendering the disposition or its superior authority becomes aware of the existence of a reason for withdrawal.The right to claim for compensation under the preceding article is extinguished by prescription if not exercised within two years from the date the [beneficiary] is informed by the administrative authority of such matter; the same applies if not exercised within five years from the date the disposition is withdrawn.