Article V: Perspective Responsibilities 1. ESRO responsibilities Among ESRO's responsibilities are the following: (a) design, develop and manufacture one SL flight unit (consisting of one set of module and pallet sections), one SL engineering model, two sets of SL ground support equipment, initial SL spares, along with relevant drawings and documentation; and qualify and test for acceptance this equipment according to NASA specifications and requirements; (b) deliver to NASA the items listed above; (c) design, develop and manufacture such elements as ESRO and NASA may agree to be necessary for the programme in addition to those listed in (a) above; (d) establish in the US and accommodate in Europe agreed liaison personnel; (e) provide all necessary technical interface information; (f) provide agreed progress and status information; (g) following delivery of the above flight unit, maintain and fund an SL sustaining engineering capability through the first two SL flight missions, and ensure for NASA's account the future availability to NASA of such engineering capability to meet NASA's operating requirements, on the same conditions as would apply to ESRO; (h) ensure the production in Europe and possibility of procurement by NASA of subsequent flight units, components and spares; and (i) provide for preliminary integration of experiments which ESRO supports, as well as acquire the corresponding data, within the overall responsibilities of NASA described in paragraph 2(j) of this Article, and process it. 2. NASA responsibilities Among NASA's responsibilities are the following: (a) establish in Europe and accommodate in the US agreed liaison personnel; (b) provide general technical and managerial consultation; (c) provide all necessary technical interface information; (d) provide agreed progress and status information; (e) monitor ESRO technical progress in selected areas as defined in the Programme Plans; (f) review and concur in the implementation of ESRO activities critical to the NASA programmatic requirements for the SL as defined in the Programme Plans; (g) specify, in order to assure successful operation of the SL in the Shuttle system, operational plans, and hardware and operational interfaces as defined in the Programme Plans; (h) conduct systems analyses for development of operational concepts and utilisation plans, and assess the impact of changes at all SL external interfaces; (i) develop selected peripheral components, not part of, but necessary to the successful operation of the SL (e.g. access tunnel, docking ports); and (j) manage all operational activities subsequent to the delivery of the SL, including experiment integration, crew training, checkout, flight operations, refurbishment, data acquisition, preliminary processing and distribution of data. 3. By agreement of the NASA Administrator and the Director General of ESRO, changes may be made in the above responsibilities, as may be desirable for the implementation of this cooperative programme.