For purposes of this chapter, the following officials are hereby designated as delegates of the Secretary who are authorized to issue a summons under Sec. 1010.911, solely for the purposes of civil enforcement of this chapter:
(a) FinCEN. The Director, FinCEN.
(b) Internal Revenue Service. Except with respect to Sec. 1010.340 of this chapter, the Commissioner, the Deputy Commissioner, or a delegate of either official, and, for the purposes of perfecting seizures and forfeitures related to civil enforcement of this chapter, the Chief (Criminal Investigation) or a delegate.
(c) Customs and Border Protection. With respect to Sec. 1010.340 of this chapter, the Commissioner, the Deputy Commissioner, the Assistant Commissioner (Enforcement), Regional Commissioners, Assistant Regional Commissioners (Enforcement), and Special Agents in Charge.