( d) Loans to specialized agencies and preparatorv commissions of agencies to he established hv intergovernmental agreement under the auspices· of the United Natio~1s to nnance their work, pending receipt hv the :,genc1es concerned of sufficient contributions nnder their own budgets. 111 making such loans, which -;_hall norm~lly he repayable within two years, the Secretary-( ,eneral shall have regard to the proposed finar!cial resources of the agency concerned, and shall ol'.ta111 the pri~r. con~urrence of the Advisory Committee on Adn11111strative and Budgetarv Questions for any cash issues ,vhich ,vould increas; the aggregate !,;dance ontstan,ling ( including amounts previouslv advanced and outstanding) at any one time to an amount in excess of $3,000,000, and for any issue which would mcn:ase the balance outstanding (including amounts prenously advanced and O\ltstanding) in respect of any one agrncy to an amount 111 excess of $1,000,000; . ( c) Such s11!lls as, togethci: with the sums prevH,usly advanced and outstanding for the same purpose, do not exceed $500,000 to continue the Staff Housing Fund in orde: to finance advance rental payment, guarantee deposits and working capital require-