As for red tag on the gas main here in mass it is strickley forbidden. Under no circumstances are we to clamp the gas . One red tag that i never knew about was in residential work. Most all of us have stapled useing the standard blue staples with 2 romexs underneath it. Low and behold they make a staple strickley for this purpose. I never knew about it. Has anyone else run accross this?I would like to know.