Special subjects relating to the proposed programme budget for the biennium 2018–2019 A/RES/72/262 and that all remaining unused contingency funds be returned to Member States at the conclusion of the project, in 2023; 12. Takes note of paragraph 19 of the report of the Advisory Committee, and encourages the Secretary-General to continue to respond flexibly to changes from internal and external factors in order to implement the project within the scope, budget and timeline approved by the General Assembly; 13. Recalls paragraph 13 of the report of the Advisory Committee; 14. Requests the Secretary-General to remain proactive in seeking both voluntary and in-kind contributions from Member States, in full compliance with all relevant rules and regulations of the Organization, and to provide detaile d information on the matter in the context of the next progress report; 15. Approves an appropriation in the amount of 4,057,200 dollars for the project for 2018, comprising 615,000 dollars under section 19, Economic and social development in Asia and the Pacific, and 3,442,200 dollars under section 33, Construction, alteration, improvement and major maintenance, of the proposed programme budget for the biennium 2018–2019, which would represent a charge against the contingency fund; 16. Requests the Secretary-General to submit to the General Assembly, at the main part of its seventy-third session, a progress report on the implementation of the project; XIV Proposal for the replacement of office blocks A to J at the United Nations Office at Nairobi Having considered the report of the Secretary-General 25 and the related report of the Advisory Committee, 26 1. Takes note of the report of the Secretary-General; 25 2. Endorses the conclusions and recommendations contained in the report of the Advisory Committee, 26 subject to the provisions of the present resolution; 3. Acknowledges the important role played by the host country in facilitating the maintenance and construction of United Nations facilities in Nairobi, and stresses the value of continued collaboration with the host country in this regard; 4. Expresses its gratitude to the host country for its continued support to the United Nations Office at Nairobi, and trusts that the Secretary-General will continue to engage, as appropriate, with the host country as has been the practice with respect to other construction projects at the United Nations Office at Nairobi; 5. Encourages the Secretary-General to continue his efforts to include local knowledge, technology and capacity throughout the implementation of the proposed replacement of office blocks A to J at the United Nations Office at Nairobi, as appropriate; 6. Requests the Secretary-General, through the Office of Central Support Services, to take into account lessons learned and best practices from similar past construction and renovation projects in the planning, design and implementation of the proposed replacement of office blocks A to J; __________________ 25 26 17-23363 A/72/375. A/72/7/Add.28. 11/27