Service agents are subject to Public Interest Exclusion (PIE) actions in accordance with 49 CFR Part 40, subpart R. The PIE is an action which excludes from participation in DOT's drug and alcohol testing program any service agent who, by serious noncompliance with this part or with 49 CFR part 40, has shown that it is not currently acting in a responsible manner.
46 C.F.R. §16.109