DC Water Operator Practice Questions - District Of Columbia Water Wastewater Operator Certification Exam

DC operator certification exams are administered at electronic testing sites coordinated through which organization?

Pearson VUE Prometric The Association of Boards of Certification / Water Professionals International (WPI) through PSI testing centers Castle Worldwide

Correct Answer:

The Association of Boards of Certification / Water Professionals International (WPI) through PSI testing centers

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