Heads of departments may exchange surplus documents for other documents and books required by them, when it is to the advantage of the public service.
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44 U.S. Code § 1721 - Exchange of documents by heads of departments
Historical and Revision Notes
Based on 44 U.S. Code, 1964 ed., § 93 (Jan. 12, 1895, ch. 23, § 95, 28 Stat. 623).