Oklahoma

“From page 13 of the OK Regulation Guide:

“”Tracking With Dogs
Allows hunters the use of a leashed dog to help locate downed game after notifying a game warden (message, email or call) with location and time. No person may have a means of take
on their person while tracking with dogs.”””

State Regulations: https://www.wildlifedepartment.com/sites/default/files/17OKAB-Hunting-PP3-RE.pdf

United States:
Canada:

Green — Tracking allowed
Red — No Tracking allowed
Gray — Tracking allowed under certain circumstances or in certain areas of the state/province, but not all