Use the same rule as for passing motorized vehicles in almost all instances.
When there are no vehicles are in the way, or in the lane ou are trying to pass in. Passing is not permitted on solid double lines.
on the center of the road
It means that you cannot pass any vehicles in that zone. It can also signify that the passing zone has ended.
Traffic
It is so as it can be straight in the mirrors of all the passing vehicles.
When signaled by a Police Officer or as required for passing emergency vehicles.
to travel by standing on the side of the road and soliciting rides from passing vehicles.
Slow down to half the posted speed limit.
shoulder
You don't. No passing means "no passing" and a big rig driver does not have the authority to tell vehicles to pass. Pay the ticket and consider it a lesson learned even though it was the result of an act of courtesy.
False
They should, but they usually don't. If there are any actual LAWS addressing the issue, they would vary from place to place.