BIRMINGHAM, Ala. – WQA offers certification for water treatment professionals who are interested in advancing their marketplace knowledge and sales credibility.

Interested professionals can earn or build on WQA’s Certified Water Specialist (CWS) program. For more information, please visit

If you are a regular reader of Water Technology magazine and, you are likely more prepared than others.

We often feature a quiz called, Certification Action Line, which includes questions typical of those appearing in WQA’s certification examinations.

Review some of the past quizzes here.