[Code of Federal Regulations]

[Title 46, Volume 4]

[Revised as of October 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 46CFR108.171]



[Page 126]

 

                            TITLE 46_SHIPPING



                  (This book contains parts 90 to 139)

 

   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)

 

PART 108_DESIGN AND EQUIPMENT--Table of Contents

 

                 Subpart B_Construction and Arrangement

 

Sec.  108.171  Class I, Division 1 locations.



    The following are Class I, Division 1 locations:

    (a) An enclosed space that contains any part of the mud circulating 

system that has an opening into the space and is between the well and 

final degassing discharge.

    (b) An enclosed or semi-enclosed location that is below the drill 

floor, and contains a possible source of gas release.

    (c) An enclosed space that is on the drill floor, and is not 

separated by a solid, gas-light floor from the spaces specified in 

paragraph (b) of this section.

    (d) A space that would normally be considered a Division 2 location 

under Sec.  108.173 but where combustible or flammable gases might 

accumulate.

    (e) A location in the weather, or a semi-enclosed location, except 

as provided in paragraph (b) of this section that is within 1.5 m (5 

ft.) of the boundary of any--

    (1) Equipment or opening specified in paragraph (a) of this section;

    (2) Ventilation outlet, access, or other opening to a Class I, 

Division 1 space; or

    (3) Gas vent outlet.

    (f) Except as provided in Sec.  108.175, an enclosed space that has 

an opening into a Class I, Division 1 location.