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Plumber’s Helper, Open Competitive, Title Code # 91916, Exam # 5105

Posted 12/31/69

Updated Jan. 23, 2026 - 401 eligible

Based on the determination of the Test Validation Board convened for this examination, the final key answers are adopted with changes to the proposed key answers, and the list below is established effective December 24, 2025, subject to Investigation, and substantiation of Veterans and Legacy Credits – 401 eligibles

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