Reconsideration: Application period: One month. Optionally, before the office that issued the administrative ruling being appealed, stating that no economic-administrative claim has been lodged against said ruling.
Economic-administrative claim: Application period: One month from the day following notification of the challenged ruling or from the date on which the proceedings or the prior motion for reversal are deemed rejected. It should be addressed to the administrative body that issued the ruling being challenged.
Start: Presentation of an application to include the authorisation onto the Register. This can be done in person by the authorising party or the customs agent empowered to represent them, presenting a public or private document with a notarised signature, or through the e-Office of the State Tax Agency.
Procedure: Verification of the content of the power of attorney. In the event that defects are observed in the granting of the power of attorney, the interested party shall be notified so that it may, within a period of ten days, rectify the defect or provide the necessary documents, indicating that, otherwise, the proceedings shall be filed, considering that the interested party desists from its petition.