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            1. NEMA
            2. Standards
            3. Technical Services
            4. Conformity Assessment
            5. U.S. National Committee for the IECEx

            U.S. National Committee for the IECEx

            The IECEx System is the International Electrotechnical Commission System for Certification to Standards Relating to Equipment for Use in Explosive Atmospheres. The U.S. National Committee for the IECEx (USNC/IECEx) is the U.S. Member Body for the IECEx System. The USNC/IECEx represents all US stakeholders, and coordinates its activities with the other IEC Conformity Assessment Systems in the U.S. by actively participating in the USNC/IEC Council and the USNC Conformity Assessment Policy Coordination Committee (CAPCC).  The purpose of CAPCC is to develop and coordinate USNC/IEC positions on IEC Conformity Assessment Board (IEC CAB) issues and other International, Regional or National Conformity Assessment agendas that may impact IEC Conformity Assessment System’s activities or interests within the U.S.

            Objectives

            The principal objective of the USNC/IECEx is to:

            • Serve as the U.S. Member Body of the IECEx System for conformity testing and certification of electrical equipment used in explosive atmospheres.
            • Coordinate with U.S. Ex Certification Bodies (ExCBs) to assure that National Differences to Ex Standards for safety that are accepted for use in the IECEx System are uniform for all ExCBs in the United States.
            • Process applications for submission to the Secretariat of the IECEx System.
            • Develop U.S. viewpoints and comments on all matters pertaining to the IECEx System.
            • Provide a structure which is open to all related industry stakeholders.

            The principle objective of the IECEx System is to facilitate international trade by providing a global framework for impartial third-party conformity assessment and certification of equipment, services, personnel and other related activities, eoncompassing the concept of mutual recognition, while maintaining the required level of safety, including:

            • Reduced testing and certification costs to manufacturer
            • Reduced time to market
            • International confidence in the product assessment process
            • One international database listing
            • Maintaining international confidence in equipment and services covered by IECEx Certification

            Educational initiatives

            In addition to the principal objectives of the USNC/IECEx as detailed above, our committee is involved in educational initiatives regarding the IECEx System. These initi​atives involve symposiums, presentations, papers and articles in association with organizations interested in international hazardous locations (explosive atmospheres) issues. These USNC/IECEx educational initiatives complement those by the IECEx System, such as this recent video.

            Membership

            Membership in the USNC/IECEx is open to all U.S. National interested parties who are directly and materially affected by the committee's activity. Participation is fair and equitable without dominance by any single interest. All U.S. ExCBs are Members of the USNC/IECEx.

            U.S. National Interested Parties are one of the following entities:

            • An individual representing a corporation or an organization domiciled in the U.S.
            • An individual representing a U.S. federal, state or local government entity.
            • A U.S. citizen or permanent resident.

            Anyone interested in becoming a Member, including testing and certification bodies, shall make a request in writing to the USNC/IECEx Secretary stating why they believe their organization is directly and materially affected by the committee's activities.

            Regarding IECEx System membership, it is by country, with there being 36 Member Body Countries as of June 2024.

            IECEx System certification schemes

            The IECEx System comprises the following four certification schemes:

            • IECEx Certified Equipment Scheme
            • IECEx Certified Service Facilities Scheme
            • IECEx Certificate of Personnel Competence Scheme
            • IECEx Conformity Mark Licensing System            

            Ex Equipment manufacturers, Ex Service providers and Ex Personnel can apply to ExCBs in the United States for certification under any of these four certification schemes.  The current U.S. ExCBs under these schemes are:

            • FM Approvals LLC: Certified Equipment Scheme (ExCB/ExTL)
            • Intertek Testing Services NA, Inc.: Certified Equipment Scheme (ExCB/ExTL)
            • UL Solutions: Certified Equipment Scheme (ExCB/ExTL), Certified Service Facilities Scheme (ExCB), Certificate of Personnel Competence Scheme (ExCB), and Conformity Mark Licensing System Scheme (ExCB)
            • SGS North America, Inc. Certified Equipment Scheme (ExCB/ExTL)

            Executive organization of the USNC/IECEx

            • Chair:

            Scott Kiddle (ABB Inc.​)​​

            • Vice Chair:

            Katy Holdredge (UL Solutions)

            Kevin Wolf (Intertek)

            • Treasurer:

            Jason Anderson (Thermon Inc.)

            • Secretary:

            Mike Leibowitz (NEMA)

            • Immediate Past Chair:

            Evans Massey (ABB Motors and Mechanical Inc., retired)

            More information

            Further information is available directly from the USNC/IECEx Secretary via the coordinates show below...

            Mike Leibowitz, Secretary, USNC/IECEx

            NEMA
            1300 North 17th Street, Suite 900
            Rosslyn, VA, 22209
            Phone: (703) 841-3264
            E-Mail: mike.leibowitz@nema.org

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