[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: 46CFR91.50-1]



[Page 31-32]

 

                            TITLE 46_SHIPPING



                  (This book contains parts 90 to 139)

 

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

 

PART 91_INSPECTION AND CERTIFICATION--Table of Contents

 

              Subpart 91.50_Special Operating Requirements

 

Sec.  91.50-1  Inspection and testing required when making alterations,





repairs, or other such operations involving riveting, welding, burning 

or like fire-producing actions.



    (a) The provisions of ``Standard for The Control of Gas Hazards on 

Vessels to be Repaired,'' NFPA No. 306, published by National Fire 

Protection Association, 1 Batterymarch Park, Quincy, MA 02669, shall be 

used as a guide in conducting the inspections and issuance of 

certificates required by this section.

    (b) Until an inspection has been made to determine that such 

operation can be undertaken with safety, no alterations, repairs, or 

other such operations involving riveting, welding, burning, or like 

fire-producing actions shall be made:

    (1) Within or on the boundaries of cargo tanks which have been used 

to carry combustible liquids or chemicals in bulk; or,



[[Page 32]]



    (2) Within spaces adjacent to cargo tanks which have been used to 

carry Grade D combustible liquid cargo, except where the distance 

between such cargo tanks and the work to be performed is not less than 

twenty-five (25) feet; or,

    (3) Within or on the boundaries of fuel tanks; or,

    (4) To pipelines, heating coils, pumps, fittings, or other 

appurtenances connected to such cargo or fuel tanks; or,

    (5) On miscellaneous vessels such as cable, salvage, pile driving, 

and oil drilling rig vessels that have been specially authorized to 

carry Grade B or Grade C flammable liquid cargo in bulk by the 

Commandant, within or on the boundaries of such cargo tanks or within 

spaces adjacent to such cargo tanks.

    (c) Such inspections shall be made and evidenced as follows:

    (1) In ports or places in the United States or its territories and 

possessions the inspection shall be made by a marine chemist 

certificated by the National Fire Protection Association; however, if 

the services of such certified marine chemist are not reasonably 

available, the Officer in Charge, Marine Inspection, upon the 

recommendation of the vessel owner and his contractor or their 

representative, shall select a person who, in the case of an individual 

vessel, shall be authorized to make such inspection. If the inspection 

indicates that such operations can be undertaken with safety, a 

certificate setting forth the fact in writing and qualified as may be 

required, shall be issued by the certified marine chemist or the 

authorized person before the work is started. Such qualifications shall 

include any requirements as may be deemed necessary to maintain, insofar 

as can reasonably be done, the safe conditions in the spaces certified 

throughout the operation and shall include such additional tests and 

certifications as considered required. Such qualifications and 

requirements shall include precautions necessary to eliminate or 

minimize hazards that may be present from protective coatings or 

residues from cargoes.

    (2) When not in such a port or place, and a marine chemist or such 

person authorized by the Officer in Charge, Marine Inspection, is not 

reasonably available, the inspection shall be made by the senior officer 

present and a proper entry shall be made in the vessel's logbook.

    (d) It shall be the responsibility of the senior officer present to 

secure copies of certificates issued by the certified marine chemist or 

such person authorized by the Officer in Charge, Marine Inspection. It 

shall be the responsibility of the senior officer present, insofar as 

the persons under his control are concerned, to maintain a safe 

condition on the vessel by full observance of all qualifications and 

requirements listed by the marine chemist in the certificate.



[CGFR 65-50, 30 FR 16974, Dec. 30, 1965, as amended by CGD 95-072, 60 FR 

50464, Sept. 29, 1995]