Decisions 09.11.2026 Director Decision 2026-42 amending the rules of procedures for the selection of ACER Temporary and Contract Staff Feedback Decisions 20.10.2026 Director Decision 2026-39 establishing public holidays for the year 2027 at ACER Decisions 12.10.2026 Director Decision 2026-32 on environmental policy Decisions 22.09.2026 ACER Decision No 13-2026 on the third amendment of the implementation framework for the EU platform for the exchange of balancing energy from frequency restoration reserves with manual activation Annexes ACER Decision 13-2026 - Annex I ACER Decision 13-2026 - Annex Ia ACER Decision 13-2026 - Annex II ACER Decision 13-2026 - Annex IIa ACER Decision 13-2026 - Annex III - EoR Decisions 22.09.2026 ACER Decision No 12-2026 on the third amendment of the implementation framework for the EU platform for the exchange of balancing energy from frequency restoration reserves with automatic activation Annexes ACER Decision 12-2026 - Annex I ACER Decision 12-2026 - Annex Ia ACER Decision 12-2026 - Annex II ACER Decision 12-2026 - Annex IIa ACER Decision 12-2026 - Annex III - EoR Decisions 22.07.2026 ACER Decision No 11-2026 on the methodology for cost sharing of redispatching and countertrading of the Core capacity calculation region Annexes ACER Decision 11-2026 - Methodology - Annex I ACER Decision 11-2026 - Methodology - Annex Ia (TC) Decisions 17.07.2026 ACER Decision No 10-2026 on the fourth amendment of the Core region's day-ahead capacity calculation methodology Annexes ACER Decision No 10-2026 - Annex I ACER Decision No 10-2026 - Annex Ia ACER Decision No 10-2026 - Annex II ACER Decision No 10-2026 - Annex IIa Decisions 17.07.2026 ACER Decision No 09-2026 on the first amendment of the Core region's long-term capacity calculation methodology Annexes ACER Decision No 09-2026 - Annex I ACER Decision No 09-2026 - Annex Ia ACER Decision No 09-2026 - Annex II ACER Decision No 09-2026 - Annex IIa ACER Decision No 09-2026 - Annex III - EoR Decisions 24.06.2026 ACER Decision No 08-2026 on the first amendment to the regional coordination centre regional sizing of reserve capacity methodology Annexes Corrigendum ACER Decision 08-2026 on RCC sizing methodology - Annex I - Rectified ACER Decision 08-2026 on RCC sizing methodology - Annex Ia - Rectified ACER Decision 08-2026 on RCC sizing methodology - Annex II - Rectified ACER Decision 08-2026 on RCC sizing methodology - Annex IIa -Rectified Feedback