TexasCHLforum.com

The law says you "may" drive on the shoulder to allow someone to pass if it is "safe and necessary."

It does not require you to do so.

I know some country road drivers consider it a "courtesy" to pull to the shoulder, but I doubt they will stop to help when you get a flat or other car damage from debris common on shoulder. I'll stay on left side of the fog line, thank you very much.