NY: Trusts are irrevocable by default
In New York, trusts are irrevocable by default. EPTL 7-1.16. Despite this rule, it is good drafting practice to expressly state that the trust is irrevocable.
EPTL 7-1.16 Revocation of lifetime trust by will
A lifetime trust shall be irrevocable unless it expressly provides that it is revocable. . . .