74 be given of the erection, emplacement and removal of such installations, and permanent means for giving warning of their presence must be maintained; (b) such installations may not be established where interference may be caused to the use of recognized sea lanes essential to international navigation or in areas of intense fishing activity; (c) safety zones shall be established around such installations with appropriate markings to ensure the safety of both navigation and the installations. The configuration and location of such safety zones shall not be such as to form a belt impeding the lawful access of shipping to particular maritime zones or navigation along international sea lanes; (d) such installations shall be used exclusively for peaceful purposes; (e) such installations do not possess the status of islands. They have no territorial sea of their own, and their presence does not affect the delimitation of the territorial sea, the exclusive economic zone or the continental shelf. 3. Other activities in the marine environment shall be conducted with reasonable regard for activities in the Area. Article 148 Participation of developing States in activities in the Area The effective participation of developing States in activities in the Area shall be promoted as specifically provided for in this Part, having due regard to their special interests and needs, and in particular to the special need of the land-locked and geographically disadvantaged among them to overcome obstacles arising from their disadvantaged location, including remoteness from the Area and difficulty of access to and from it. Article 149 Archaeological and historical objects All objects of an archaeological and historical nature found in the Area shall be preserved or disposed of for the benefit of mankind as a whole, particular regard being paid to the preferential rights of the State or country of origin, or the State of cultural origin, or the State of historical and archaeological origin. SECTION 3. DEVELOPMENT OF RESOURCES OF THE AREA Article 150 Policies relating to activities in the Area Activities in the Area shall, as specifically provided for in this Part, be carried out in such a manner as to foster healthy development of the world economy and balanced growth of international trade, and to promote international cooperation for the over-all development of all countries, especially developing States, and with a view to ensuring: (a) the development of the resources of the Area; (b) orderly, safe and rational management of the resources of the Area, including the efficient conduct of activities in the Area and, in