CFR > Title 46 - Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER F—MARINE ENGINEERING (parts 50 to 64) > PART 54—PRESSURE VESSELS > SUBPART 54.23—Fabrication by Brazing (§54.23-1 to §54.23-1) > 54.23-1—Scope (modifies UB-1).