CFR > Title 46 - Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER D—TANK VESSELS (parts 30 to 39) > PART 35—OPERATIONS > SUBPART 35.40—Posting and Marking Requirements—TB/ALL. (§35.40-1 to §35.40-40) > 35.40-7—Carbon dioxide alarm—T/ALL.