Many supplies or services are acquired subject to commercial supplier agreements, as defined in 502.101. The clause at 552.232-39, Unenforceability of Unauthorized Obligations, automatically applies to any micro-purchase, including those made with the Governmentwide purchase card in lieu of the FAR clause at 52.232-39.

Where the supplies or services are offered under a commercial supplier agreement,as defined in 502.101, see 532.706-3 for applicable clauses.