31 CFR §594.311
The term terrorism means an activity that:
- (a)Involves a violent act or an act dangerous to human life, property, or infrastructure; and
- (b)Appears to be intended:
- (1)To intimidate or coerce a civilian population;
- (2)To influence the policy of a government by intimidation or coercion; or
- (3)To affect the conduct of a government by mass destruction, assassination, kidnapping, or hostage-taking.