A provincial referendum is enough for Alberta to secede.
Stated by: Commonly stated by Alberta independence advocates
Summary
On the narrow question of whether a referendum by itself accomplishes secession, the governing authority is the Supreme Court of Canada's 1998 Secession Reference, not one side of the political debate. The Court held that no province can secede unilaterally: a clear vote on a clear question creates a duty to negotiate, and actually leaving requires a constitutional amendment involving the other provinces. The Clarity Act enacts that ruling. Recent Alberta rulings added a treaty-based barrier, but those decisions are now under appeal by both the province and the petition's backers, so they are noted here rather than relied on for the verdict.
Evidence
The Supreme Court held a province cannot secede unilaterally; a clear referendum creates a duty to negotiate, and secession itself requires a constitutional amendment, so a referendum on its own does not accomplish it.
Supreme Court of Canada, Reference re Secession of Quebec (1998) (opens in a new tab)
The Clarity Act puts that ruling into federal law, barring secession negotiations without a clear majority on a clear question and requiring the constitutional amendment process.
Alberta's 2025-2026 King's Bench rulings found a secession petition would also engage Treaty 7 and Treaty 8 rights, but both the province and the petition's backers have appealed, arguing the court erred, so that treaty question is not yet settled.
CBC News (appeal of the petition ruling) (opens in a new tab)