Act 250 is now location-based
Act 250, 10 V.S.A. chapter 151, is Vermont's state land use permit. Historically jurisdiction turned on town-wide thresholds: roughly an acre of development, or ten acres in towns with permanent zoning and subdivision bylaws. Act 181 of 2024 replaced that with three tiers derived from regional future land use maps. Tier 1A areas are fully exempt. Tier 1B exempts 50 or fewer housing units on ten acres or less. Tier 2 is everything else and holds the prior rules. Tier 3 will carry expanded jurisdiction over critical natural resources under Board rules. Tiers 1A and 1B took effect January 1, 2026; Tiers 2 and 3 on December 31, 2026.