41 C.F.R. § 105-60.103-2 Applying exemptions.
Title 41 - Public Contracts and Property Management
GSA may deny a request for a GSA record if it falls within an exemption under the FOIA outlined in subpart 105–60.5 of this part. Except when a record is classified or when disclosure would violate any Federal statute, the authority to withhold a record from disclosure is permissive rather than mandatory. GSA will not withhold a record unless there is a compelling reason to do so; i.e., disclosure will likely cause harm to a Governmental or private interest. In the absence of a compelling reason, GSA will disclose a record even if it otherwise is subject to exemption. GSA will cite the compelling reason(s) to requesters when any record is denied under FOIA.
Title 41: Public Contracts and Property Management
PART 105–60—PUBLIC AVAILABILITY OF AGENCY RECORDS AND INFORMATIONAL MATERIALS
Subpart 105–60.1—General Provisions
§ 105-60.103-2 Applying exemptions.

