'The Committee' define it.... the grounds staff mark it....... mind you, nobody would get anything else done if they had to define the 'tractor marks' everytime they drove anywhere.
Exactly. I think it best to keep to a minimum of white lining around a course. This condition is an easy one to identify with a few words and it isn't too difficult to come up with some sort of definition of one. This is ours:
A rut is considered deep if your ball is lying in it and your clubhead cannot connect with it or follow through without interference from an edge of the rut or, if you have to stand on it, you cannot take a normal balanced stance.