Definitely a different usage of OB from ball golf. Every hazard is called OB in DG but there are different types in BG. Can be confusing but as someone already said Dg has different rules. I still haven't gotten any feedback on my sidewalk question. When a sidewalk is listed as OB is it always the sidewalk AND over or is it JUST the sidewalk (or Road)? That's if it is not plainly stated on or over but just says sidewalk OB.