ANNEX B 1. COST OF THE PROGRAMME The overall financial envelope is estimated at 308 millions of accounting units (MAU) at mid-1973 prices and is composed of the following elements: — Definition phase : the financial envelope for this phase is fixed at 10 MAU, and divided as follows: — sub-phase B 2 : 7 MAU, — sub-phase B 3 : 3 MAU. — Design, development and construction phase: the financial envelope shall be determined in accordance with the provisions of article 5, paragraph 1 of the Arrangement. The cost of the main development contract is estimated at 175 MAU. — Internal expenditure (estimated at 30 MAU) and share of commun and support costs (estimated at 33 MAU). — Contingency, including space technology, fixed at 15 MAU, and modifications resulting from the shuttle programme, not covered by the main development contract, estimated at 45 MAU. 2. SCALE OF CONTRIBUTIONS. a. Subject to the provisions of article 5, paragraph 2 of the present Arrangement, each Participant shall, in accordance with the following scale applicable for 1973, contribute to the expenditure resulting from the execution by the Organisation, under the terms of this Arrangement, of the sub-phase B 2 of the definition phase. States Share of contributions Federal Republic of Germany Belgium Denmark Spain France Italy Netherlands United Kingdom Switzerland Other countries (*) % 52.55 4.20 1.50 2.80 10.00 18.00 2.10 6.30 1.00 1.55 (*) Weight of vote to be attributed to the Federal Republic of Germany as long as the provisions of (c) below are applicable. b. The scale for the execution of the sub-phase B 3 and the design, development and construction phase will be fixed by the States parties to the Arrangement on the completion of sub-phase B 2 (see article 5 of the present Arrangement). c. The Government of the Federal Republic of Germany guarantees the payment of any sums shown under the heading "Other countries" in the above table until such time as they are otherwise covered. 3. REPORTS BY THE ORGANISATION ON THE FINANCIAL AND CONTRACTUAL SITUATION The Director General of the Organisation shall issue the necessary instructions for the presentation of reports on the progress and geographical distribution of the work, on the call-up of contributions, the expenditures to date and the latest estimates of cost-to-completion of the programme, in accordance with the relevant provisions of the Organisation's financial rules and with the provisions adopted by the Council of the Organisation concerning the periodical reports to be presented (document ESRO/C/306, add. 2,rev. 1). 4. FINANCIAL RULES The direct expenditure resulting from the execution of the programme by the Organisation under the foregoing Arrangement shall be charged to a programme budget which shall be established and administered by the Organisation in accordance with the relevant provisions of its financial rules. The programme's share of the Organisation's common and support costs shall be established and allocated to the programme budget in accordance with the relevant principles and procedures adopted by the Organisation. 5. REVISION CLAUSE The provisions of paragraphs 1 and 2 of this annex may be revised by a unanimous decision of the Programme Board. The provisions of paragraphs 3 and 4 of this annex may be revised by a two-thirds majority decision of the Programme Board.