2019 NFPA 306 Standard - Current Edition
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  • Description

    NFPA 306 spells out where combustible and flammable materials are present on marine vessels — and safety precautions for entry and work in confined spaces.

    Gas hazards present considerable fire protection and life safety issues for marine vessels, shipyards, and waterfront facilities. NFPA 306, Standard for the Control of Gas Hazards on Vessels codifies a set of requirements to mitigate the dangers that may come with concentrations of combustible, flammable, or toxic liquids, gases, chemicals, or vapors.

    NFPA 306 is essential for safety before and during work aboard.

    The standard prescribes the minimum requirements necessary for entry and work in confined spaces on marine vessels and waterfront facilities. It applies to vessels during construction, alteration, repair, and shipbreaking, as well as land-side confined spaces (whether stationary or mobile) located within the boundaries of the shipyard or vessel repair or other waterfront facility. NFPA 306 requirements also help you determine when a marine chemist is required, how a marine certificate is issued and maintained, and what to expect during an inspection.

    Activities that fall within the purview of this standard include:

    • Application or removal of protective coatings
    • Riveting
    • Welding
    • Burning
    • Other fire-producing operations

    Revised to closely align with U.S. Coast Guard and OSHA regulations, the 2019 edition presents technical changes such as:

    • A new definition for the term waterfront facility, drawn from U.S. Coast Guard regulation 33 CFR 6.01-4
    • New coverage of the hazards associated with hot work in, on, and adjacent to ammunition spaces, through references for applicable publications issued by the S. Navy, Naval Sea Systems Command (NAVSEA)
    • Clarification that the determination of conditions for the purpose of issuing a Marine Chemist’s Certificate must exist at the time of the Marine Chemist's tests and inspection
    • New mandates that if a space is designated “Inerted” it must also be designated “Not Safe for Workers.” Depending on the scope of work, it must designated “Safe for Hot Work” or “Safe for Limited Hot Work” as applicable.
    • A new requirement that the Marine Chemist’s name and a contact number must be noted on the certificate -- emphasizing that a change of the conditions that affect the safety of work authorized by a Marine Chemist’s Certificate must be communicated to the Marine Chemist.
    • In addition, Chapter 9 now applies to flammable cryogenic liquids that are carried as both cargo and as fuel, in response to the growth of marine vessels fueled by liquefied natural gas (LNG).

    Follow the most comprehensive provisions on gas hazards present on marine vessels and contained within shipyards.

    Stay up to date with comprehensive provisions on gas hazards present on marine vessels and within shipyards and waterfront facilities. Order NFPA 306 to help protect your shipyard employees and contractors from injury. (Print, 36 pp., 2019)

     

    Interested in other editions of NFPA 306? Use the drop down menu above to select the edition year you need.

  • Table of Contents (2019 Current Edition)

    NFPA® 306 Standard for the Control of Gas Hazards on Vessels, 2019 Edition

    Chapter 1 Administration
    1.1 Scope.
    1.2 Purpose.
    1.3 Emergency Exception.
    1.4 Governmental Regulations.
    Chapter 2 Referenced Publications
    2.1 General.
    2.2 NFPA Publications.
    2.3 Other Publications.
    2.4 References for Extracts in Mandatory Sections.
    Chapter 3 Definitions
    3.1 General.
    3.2 NFPA Official Definitions.
    3.3 General Definitions.
    Chapter 4 Vessels Required to Have Marine Chemist’s Certificate
    4.1 Tank Vessels.
    4.2 Vessels Other Than Tank Vessels.
    4.3 Military Unique Vessels (i.e., U.S. Navy, Coast Guard, Army).
    4.4 Vessels in Lay-Up.
    4.5 Vessels Carrying Flammable Compressed Gas.
    4.6 Obtaining the Marine Chemist’s Certificate.
    Chapter 5 Preparing Vessels by the Vessel Owner, Operator, or Repairer, for Issuance of a Marine Chemist’s Certificate Involving Hot Work
    5.1 Where a Safe Condition Is to Be Obtained Entirely by Cleaning.
    5.2 Where a Safe Condition Is to Be Obtained by Both Cleaning and Inerting or Entirely by Inerting.
    5.3 Where a Safe Condition Is to Be Obtained by Cleaning Certain Compartments and by Securing the Other Compartments.
    5.4 Where a Safe Condition Is to Be Obtained by Cleaning Some Compartments, by Inerting Some Compartments, and by Securing Some Compartments.
    5.5 Cargo Heater Coils.
    5.6 Electric Welding Operations.
    5.7 Requirements for Use of a Designated Berthing Area for Cleaning, Gas Freeing, or Inerting.
    5.8 Vessel Fuel Oil Tanks.
    Chapter 6 Procedures for the Marine Chemist Prior to Issuance of a Certificate
    6.1 Calibration and Function Verification.
    6.2 Determination of Conditions.
    Chapter 7 Standard Safety Designations and Conditions Required
    7.1 General.
    Chapter 8 The Marine Chemist’s Certificate
    8.1 Preparation of Certificates.
    8.2 Issuance of Certificates.
    8.3 Responsibility for Obtaining the Marine Chemist’s Certificate.
    8.4 Maintaining the Responsibility for Maintaining the Conditions.
    Chapter 9 Additional Requirements for Vessels Having Flammable Cryogenic Liquid Fuel or Cargo
    9.1 Scope.
    9.2 Definitions.
    9.3 Minimum Requirements.
    9.4 Minimum Conditions.
    Annex A Explanatory Material
    Annex B Examples of Safe Conditions
    Annex C Samples of Marine Chemist’s Certificates
    Annex D Guidance to Vessel Owners and Operators When Hot Work and/or Enclosed/Confined Space Entry Is Conducted on a Vessel at Sea and a Marine Chemist Is Not Required
    Annex E Limiting Oxidant Concentrations
    Annex F Informational References
  • Prior Editions

    2014 Edition

    Trust the 2014 NFPA 306 to provide guidance where combustible and flammable materials are present on marine vessels.

    Gas hazards present considerable fire protection and life safety issues for marine vessels, shipyards, and land-side vessels. NFPA 306 codifies a set of requirements to mitigate the dangers that may come with concentrations of combustible, flammable, or toxic liquids, gases, chemicals, or vapors.

    Newly organized with more intuitive workflows for shipyard employees and clarified preparation for inspections!

    The 2014 edition of NFPA 306, Standard for the Control of Gas Hazards on Vessels has been completely reorganized to provide a more intuitive workflow for shipyard employees and vessel repair professionals. NFPA 306 makes it easier to determine when a marine chemist is required, how a marine certificate is issued and maintained, and what to expect during an inspection. It also clarifies how you can prepare the vessel for inspection and survey -- and align work processes during vessel construction, conversion, repair, and other shipyard employment more closely with actual workflows.

    Understand requirements for entry, work in confined spaces, or on vessels during various stages of construction, repair, and more...

    NFPA 306 prescribes minimum requirements necessary for entry and work in confined spaces on marine vessels. The Standard applies to vessels during construction, alteration, repair, and shipbreaking, as well as land-side confined spaces (whether stationary or mobile) located within the boundaries of the shipyard or vessel repair facility.

    A wide range of activities fall within the purview of this standard, including.

    • Application or removal of protective coatings
    • Riveting
    • Welding
    • Burning
    • Other fire-producing operations

    Stay up to date with the most comprehensive provisions on gas hazards present on marine vessels and contained within shipyards. Order NFPA 306 to protect your shipyard employees and contractors from injury. (Softbound, 25 pp., 2014) 

    Interested in other editions of NFPA 306? Use the drop down menu above to select the edition year you need.

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