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UN works not in the annex to Administrative Instruction ST/AI/189/Add.9/Rev.1 (available in English) published in the US before 1978 are in the public domain because they were published without a copyright notice. UN works not in the annex to ST/AI/189/Add.9/Rev.1 published in the US between 1978 and 17 September 1987 are in the public domain because they were published without a copyright notice and their copyright was not subsequently registered with the U.S. Copyright Office within 5 years (from 1978 through 1993 the UN did not register any document published in the US before 17 September 1987).
This work is in the public domain in the United States because it meets two requirements:
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it is not sourced to a document listed in the appendix of ST/AI/189/Add.9/Rev.1 (these documents were copyrighted under an exception to the general practice).
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Prior to 17 September 1987 the U.N. had an official policy of deliberately not complying with U.S. copyright formalities (except for the documents listed in the appendix of ST/AI/189/Add.9/Rev.1 which were copyrighted under an exception to the general practice). Because of this, these works are in the public domain in the U.S. for failure to comply with required U.S. copyright formalities.
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