6. A modification to the approved programme of work for the period 1990-1991 would be required as the organization of only six regional meetings for officials engaged in drug law enforcement is provided for under programme element 3.1(iii). The meetings would also need to be included in the United Nations Calendar of Conferences. E. Requirements at full cost 7. The travel and subsistence costs of the heads of national drug law enforcement agencies to attend the meeting at Vienna would be borne by their respective Governments. Other than conference-servicing requirements, as outlined in the subsequent paragraphs, there would be no additional costs to the United Nations. The holding of the meeting at a location other than Vienna would be subject to the provision of General Assembly resolution 40/243, which provides that United Nations bodies may hold meetings away from their established headquarters when a Government issuing an invitation for a meeting to be held within its territory has agreed to defray, after consultation with the Secretary-General as to their nature and possible extent, the actual additional costs directly or indirectly involved. 8. The full cost of the conference-servicing requirements to undertake the activity contained in section C above are as follows: Section 29D US dollars (a) Pre-session documentation 14,200 (20 pages; 1 document; languages: E, F, R, S) (b) In-session documentation 15,300 (20 pages; 1 document; languages: E, F, R, S) (c) Post-session documentation 14,200 (20 pages; 1 document; languages: E, F, R, S) (d) Meeting servicing 40,900 (10 meetings; languages: E, F, R, S) Conference-servicing total: 84,600 - 43 - F. Potential for absorption 9. In accordance with established practice, the conference-servicing requirements were calculated on a full-cost basis for information purposes. These cost estimates are based on the theoretical assumption that no part of 
**Analysis**
This text appears to be discussing a meeting or conference related to drug law enforcement, which is a topic typically associated with international cooperation and law enforcement. The text also mentions the United Nations, which suggests that it may be a UN-related document. Given these factors, it is likely that the text falls under the category of international cooperation or law enforcement.

**Category**
International trade, Health