CFR > Title 33 - Navigation and Navigable Waters > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER C—AIDS TO NAVIGATION (parts 60 to 76) > PART 67—AIDS TO NAVIGATION ON ARTIFICIAL ISLANDS AND FIXED STRUCTURES > SUBPART 67.25—Class “B” Requirements (§67.25-1 to §67.25-10)