What this checks
No live price and no invented price.
Who this is for
A team explaining the purchase window.
Dates
The definitive regime starts on 2026-01-01. Certificate sales start on 2027-02-01. The first declaration and surrender for 2026 is 2027-09-30. From 2027 the quarterly holding is at least 50 percent. 2026 prices are quarterly.
Sources
The screen uses Regulation (EU) 2023/956, Regulation (EU) 2025/2083, and the Commission page already on file.
Limits
Categories only. No names, shipment records, raw quantities, CN lists, files, prices, registration numbers, or credentials are stored, and no national rule is invented.