shall implement a workload staffing model for each of the following: (1) The U.S. Border Patrol. (2) Air and Marine Operations of CBP. (b) Responsibilities of the Commissioner of CBP Subsection (c) of section 411 of the Homeland Security Act of 2002 ( 6 U.S.C. 211 ), is amended— (1) by redesignating paragraphs (18) and (19) as paragraphs (20) and (21), respectively