31 C.F.R. § 19.420 May I approve a transaction with an excluded or disqualified person at a lower tier?
Title 31 - Money and Finance: Treasury
If a transaction at a lower tier is subject to your approval, you as an agency official may not approve— (a) A covered transaction with a person who is currently excluded, unless you obtain an exception under §19.120; or (b) A transaction with a person who is disqualified from that transaction, unless you obtain a waiver or exception under the statute, Executive order, or regulation that is the basis for the person's disqualification.
Title 31: Money and Finance: Treasury
PART 19—GOVERNMENTWIDE DEBARMENT AND SUSPENSION (NONPROCUREMENT)
Subpart D—Responsibilities of Department of the Treasury Officials Regarding Transactions
§ 19.420 May I approve a transaction with an excluded or disqualified person at a lower tier?

