(h) exchange information on technological developments in transport and communications. ARTICLE 90 Roads and Road Transport The Partner States shall: (a) take measures to ratify or accede to international conventions on road traffic and road signs and signals and take such steps as may be necessary to implement these conventions; (b) harmonise their traffic laws, regulations and highway codes and adopt a common definition of classes of roads and route numbering systems; (c) harmonise the provisions of their laws concerning licensing, equipment, markings and registration numbers of vehicles for travel and transport within the Community; (d) adopt common standards for vehicle construction, vehicle inspection and vehicle inspection centres; (e) adopt common standards and regulations for driver training and licensing; (f) adopt common requirements for the insurance of goods and vehicles; (g) adopt common regulations governing speed limits on urban roads and highways; (h) adopt and establish common road safety regulations, accident rescue, first aid, medical care and post-trauma systems within the Community; (i) prescribe minimum safety requirements for packaging, loading and transporting of dangerous substances; (j) establish common measures for the facilitation of road transit traffic; (k) harmonise rules and regulations concerning special transport requiring security; 63