[Code of Federal Regulations] [Title 46, Volume 4] [Revised as of October 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 46CFR90.10-12] [Page 16] TITLE 46--SHIPPING CHAPTER I--COAST GUARD, DEPARTMENT OF TRANSPORTATION (CONTINUED) PART 90--GENERAL PROVISIONS--Table of Contents Subpart 90.10--Definition of Terms Used in This Subchapter Sec. 90.10-12 Gas free. This term means free from dangerous concentrations of flammable or toxic gases.