Sec. 41.12  Persons to whom rules apply.

    Full time officers, agents, and employees, and their families, of 
railroad companies, merchant ship companies, motor bus companies, air 
transport companies, telephone companies, telegraph companies, sleeping 
car companies, express companies, and pipeline companies (common 
carriers not subject to the Communications Act of 1934, as amended), 
may, at the discretion of carriers subject to the Act, receive at less 
than regularly established rates applicable to the service rendered.