| Section 5-4.2 - Certification required |
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| Section 5-4.3 - Qualifications required |
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| Section 5-4.4 - Education, experience, and/or training substitutions |
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| Section 5-4.5 - Validated examinations |
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| Section 5-4.6 - Grandparenting |
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| Section 5-4.7 - Enforcement |
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| Section 5-4.8 - Renewal/recertification requirements |
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| SubPart 5-5 - Water Quality Treatment Districts |
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| Section 5-5.1 - Purpose |
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| Section 5-5.2 - Applicability and scope |
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| Section 5-5.3 - Definitions |
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| Section 5-5.4 - Submission for approval |
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| Section 5-5.5 - Amendments and modifications |
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| Section 5-5.6 - Water quality. |
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| Section 5-5.7 - District operation |
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