Law 39/2015
Article 32. Extension.
“1. The Administration, unless otherwise provided, may grant ex officio or at the request of the interested parties an extension of the established deadlines not exceeding half of these, if the circumstances so warrant and this does not prejudice the rights of third parties. The extension agreement must be notified to the interested parties.
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3. Both the request of the interested parties and the decision on the extension must take place, in any case, before the expiry of the period in question. In no case may an expired term be extended. Agreements on the extension of time limits or on their refusal are not subject to appeal, without prejudice to any proceedings against the decision terminating the proceedings.
4. When a technical incident has prevented the normal operation of the system or the corresponding application, and until the problem is resolved, the Administration may determine an extension of the deadlines, and shall publish in the electronic office both the technical impact that has occurred as a concrete extension of the unexpired term. ”