The United Nations, Administrative Instruction ST/AI/189
“ Copyright protection will, as a general rule, be sought for all recurrent publications, studies or reports issued under the authorization of the Publications Board. In exceptional circumstances author departments may seek the concurrence of the Publications Board to obtain copyright protection for a publication in one of the categories defined in paragraph 2. Copyright protection will not be sought for publications, the legislative authority for which contemplates that the material remain in the public domain. ”
