6 U.S.C. § 1101Section
§ 1101. Definitions
For purposes of this subchapter, the following terms apply:
(1) Department
The term "Department" means the Department of Homeland Security.
(2) Secretary
The term "Secretary" means the Secretary of Homeland Security.
(Pub. L. 110–53, title XII, §1201, Aug. 3, 2007, 121 Stat. 381.)