An official website of the State of Oregon Learn How you know » (how to identify a Oregon.gov website) An official website of the State of Oregon »
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The following companies offer Backflow Assembly Tester and Cross Connection Specialist certification training approved by Oregon Drinking Water Services. A 5-day tester course from one of the following training providers is required to apply for tester certification in Oregon. A -day specialist course from one of the following training providers is required to apply for specialist certification in Oregon. Renewal courses from one of the following training providers are required for both tester and specialist renewals (except when it is your very first renewal).
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