Overview
- Mazón signed his resignation at 14:51 and registered it in Les Corts at 15:24, becoming caretaker president with full powers until a successor takes office or elections are called.
 - From the registration, parties have 12 business days to propose candidates, after which the investiture plenary must be scheduled 3 to 7 days later with the most‑backed nominee.
 - The first ballot requires an absolute majority, with a second vote 48 hours later needing a simple majority if necessary.
 - If no candidate is elected within two months of the first vote, Les Corts dissolves and elections are held 54 to 60 days after the call, a sequence that could push voting to early April and extend the caretaker period.
 - The resignation covers only the presidency, so Mazón keeps his deputy seat and parliamentary immunity (aforamiento), a point of note given the ongoing case in Catarroja.