77 written declaration will be replaced by the words “United Nations and other participating organizations”, and the word “Organization” will be replaced by the word “organizations” in the case of the Chairman and Vice-Chairman of the International Civil Service Commission and the Inspectors of the Joint Inspection Unit. Regulation 1 (c) The Secretary-General shall seek to ensure that the rights and duties of officials and experts on mission, as set out in the General Convention, are respected. The Secretary-General shall also seek to ensure, having regard to the circumstances, that all necessary safety and security arrangements are made for officials and experts on mission carrying out the responsibilities entrusted to them. Commentary 1. The first sentence of regulation 1 (c), which is similar to staff regulation 1.1 (c), codifies an implicit duty that falls upon the Secretary-General, namely, to seek to ensure that the rights and duties of officials and experts on mission as set out in the General Convention are respected (as such rights are granted by Governments, the Secretary-General can only “seek to ensure” that they are respected). The protection accorded to officials and experts on mission under this provision relates to their official acts and thus does not lapse upon cessation of their service for the Organization, or, if they are part-time, on days when they are not in service. 2. The second sentence of regulation 1 (c), which reproduces the essence of the second sentence of staff regulation 1.2 (c), sets forth the responsibility of the Secretary-General to seek to ensure the safety of officials and experts on mission. Regulation 1 (d) Experts on mission will receive a copy of the present Regulations Governing the Status, Basic Rights and Duties of Officials other than Secretariat Officials and Experts on Mission (hereinafter referred to as “the Regulations”) when they receive documentation from the United Nations relating to their mission and will be required to acknowledge receipt of the Regulations. Officials will receive a copy of the Regulations at an appropriate opportunity. Commentary 1. Experts on mission retained by the Secretariat sign a consultant contract or receive a letter or other documentation indicating the scope of their mission