Oregon:ORS 811.335(1)(a)
- 811.335 Unlawful or unsignaled turn; penalty.
- (1) A person commits the offense of making an unlawful or unsignaled turn if the person is operating a vehicle upon a highway and the person turns the vehicle right or left when:
- (a) The movement cannot be made with reasonable safety;
(Source: http://www.leg.state.or.us/ors/811.html)