CFR > Title 33 - Navigation and Navigable Waters > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER H—MARITIME SECURITY (parts 101 to 107) > PART 105—MARITIME SECURITY: FACILITIES > SUBPART A—General (§105.100 to §105.150) > 105.145—Maritime Security (MARSEC) Directive.