§ 620.400 - May I enter into a transaction with an excluded or disqualified person?

§ 620.405 - May I enter into a covered transaction with a participant if a principal of the transaction is excluded?

§ 620.410 - May I approve a participant's use of the services of an excluded person?

§ 620.411 - Notice of suspension.

§ 620.412 - Opportunity to contest suspension.

§ 620.413 - Suspending official's decision.

§ 620.415 - What must I do if a Federal agency excludes the participant or a principal after I enter into a covered transaction?

§ 620.420 - May I approve a transaction with an excluded or disqualified person at a lower tier?

§ 620.425 - When do I check to see if a person is excluded or disqualified?

§ 620.430 - How do I check to see if a person is excluded or disqualified?

§ 620.435 - What must I require of a primary tier participant?

§ 620.440 - What method do I use to communicate those requirements to participants?

§ 620.445 - What action may I take if a primary tier participant knowingly does business with an excluded or disqualified person?

§ 620.450 - What action may I take if a primary tier participant fails to disclose the information required under  620.335?

§ 620.455 - What may I do if a lower tier participant fails to disclose the information required under  620.355 to the next higher tier?