Overview
- Polling stations open from 8:00 to 18:00, voting is compulsory for ages 18–70 with typical fines of ARS 1,000–2,000 for unjustified absence, and is optional for 16–17-year-olds and those over 70.
- Half of the Legislature is at stake: 46 provincial deputies and 23 senators, along with municipal concejales and consejeros escolares, elected across eight sections that alternate between deputies and senators.
- Buenos Aires will vote with the traditional boleta sábana, while the national October 26 election will use the Boleta Única de Papel, a key reason officials separated the provincial and national dates.
- The Junta Electoral will release provisional results from 21:00 only after at least 30% of mesas are loaded in each section, with the populous First and Third sections drawing particular attention.
- Parties frame the contest as a national bellwether, with Fuerza Patria and La Libertad Avanza (in alliance with PRO in several sections) leading the field and Somos Buenos Aires and the FIT-U seeking space.