This synthesis will be of interest to highway administrators, design engineers, maintenance engineers and maintenance staff, traffic engineers, and safety officials. It will also provide useful information to the utilities and telecommunications industries. Information is presented on the state transportation agencies' policies, practices, and experience associated with occupancy of the rights-of-way on controlled (or limited) access highways. This report of the Transportation Research Board presents a brief history of accommodation of utilities in the right-of-way, including the policies developed over time by the American Association of State Highway and Transportation Officials (AASHTO) and the Federal Highway Administration (FHWA) and describes why there are issues associated with joint use of the highway right-of-way. A 1993/1994 survey of the state transportation agencies taken for this synthesis yielded 100% return, indicating the high interest in the subject. Issues included in the survey were policies and experiences regarding user and worker safety; controls placed on utilities; exceptions to right-of-way policies; and operational, legal, and equity issues.