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        <ExplanationTxt>A network of companies partnering with DOE</ExplanationTxt>
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        <ExplanationTxt>EFCOG's objective is to promote excellence in all aspects of the operation, management, and integration of U.S. Department of Energy (DOE) National Nuclear Security Administration (NNSA) facilities. The member companies work to improve safety, security, environmental protection and overall efficiency for the government. EFCOG provides tools and metrics to its members to measure and communicate progress in each of the key areas of safety, security, project management, infrastructure management, quality, energy efficiency, human capital, and waste management.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, Line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>DJ Johnson, Honeywell Federal Solutions; Mark Whitney, Amentum; Dena Volovar, Bechtel National, Inc.; David Teter, Los Alamos National Laboratory; Jack Craig, AtkinsRéalis US Nuclear; Sharon Marra, Battelle Savannah River Alliance/SRNL; Eric Papaioannou, Idaho National Laboratory; Brad Smith, N3B; Randy Hansen, Pacific Northwest National Laboratory; Robert Miklos, Veolia Nuclear Solutions; Mark Peters, Brookhaven National Laboratory; Michael Lempke, Huntington Ingalls Industries; Bob Smith, Fluor Federal Services; Jeffrey Heath, Sandia National Laboratories; Jeff Stevens, BWXT Technical Services Group, Inc.; David Campbell, EnergySolutions; Sandra Fairchild, Amentum</ExplanationTxt>
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      <SupplementalInformationDetail>
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        <ExplanationTxt>Any DOE prime contractor may join EFCOG and each company is allotted one company representative who becomes the voting member for their company.</ExplanationTxt>
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      <SupplementalInformationDetail>
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        <ExplanationTxt>The Board of Directors reviews the budget for each year and presents it to the members at the annual meeting for approval. In addition, changes to the EFCOG Charter and By-laws are presented to and approved by the members at the annual meeting.</ExplanationTxt>
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      <SupplementalInformationDetail>
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        <ExplanationTxt>EFCOG does not have independent committees within its governing body.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, Line 9</FormAndLineReferenceDesc>
        <ExplanationTxt>DJ Johnson, Honeywell Federal Solutions; Mark Whitney, Amentum; Dena Volovar, Bechtel National, Inc.; David Teter, Los Alamos National Laboratory; Jack Craig, AtkinsRéalis US Nuclear; Sharon Marra, Battelle Savannah River Alliance/SRNL; Eric Papaioannou, Idaho National Laboratory; Brad Smith, N3B; Randy Hansen, Pacific Northwest National Laboratory; Robert Miklos, Veolia Nuclear Solutions; Mark Peters, Brookhaven National Laboratory; Michael Lempke, Huntington Ingalls Industries; Bob Smith, Fluor Federal Services; Jeffrey Heath, Sandia National Laboratories; Jeff Stevens, BWXT Technical Services Group, Inc.; David Campbell, EnergySolutions; Sandra Fairchild, Amentum</ExplanationTxt>
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        <ExplanationTxt>None</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, Line 19</FormAndLineReferenceDesc>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part IX, Line 24e</FormAndLineReferenceDesc>
        <ExplanationTxt>Travel and Other Direct Costs</ExplanationTxt>
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</Return>