41 C.F.R. § 101-25.104
Each executive agency shall make a determination as to whether the requirements of the agency can be met through the utilization of already owned items prior to the acquisition of new furniture or office machines. The acquisition of new items shall be limited to those requirements which are considered absolutely essential and shall not include upgrading to improve appearance, office decor, or status, or to satisfy the desire for the latest design or more expensive lines.
(a) Generally acquisition of additional furniture or office machines from any source will be authorized only under the following circumstances, limited to the least expensive lines which will meet the requirement (see § 101-26.408 of this chapter with respect to items such as typewriters under Federal Supply Schedule contracts), and the justification for the action shall be fully documented in the agency file:
(b) Each agency shall restrict replacement of furniture or office machines either to usable excess, rehabilitated, or the least expensive new lines available which will meet the requirement under the following circumstances, authority for which will meet the requirement under the following circumstances, authority for which shall be fully documented in the agency file:
[30 FR 5479, Apr. 16, 1965, as amended at 42 FR 1031, Jan. 5, 1977]