Catalonia's parliament met Sunday to choose a new head of government following a last-minute deal between the separatist parties the previous day.
Carles Puigdemont - the agreed candidate after the Together for Yes (Junts pel Si) alliance ceded to the demand of the leftist CUP party that its acting President Artur Mas step down - was expected to present his plans for government before a vote was held.
Puigdemont, a former journalist and mayor of the Catalan town of Girona, must be voted in as premier before midnight to avoid fresh elections.
Catalonia had been without a government since elections in September 2015 until the separatist parties hammered out a deal on Saturday.
The separatists have said they would like to declare independence from Spain with 18 months.