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9400 Plum Drive, Suite 160
Urbandale, IA 50322
Phone +1 (515) 232-3623
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  • TESTING SERVICES
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        • Backflow Prevention Assembly Tester Exam References
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        • Biosolids Land Applier Exam References
        • Physical Chemical Industrial Waste Treatment Operator Exam References
        • Plant Maintenance Technologist Exam References
        • Small Wastewater System Operator Exam References
        • Water Treatment Operator Exam References
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  • CERTIFICATION
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      • IiC23 – Innovation in Certification Conference
      • IiC24 – Innovation in Certification Conference
      • IiC25 – Innovation in Certification Conference
Ask WooPI!
  • Login

Contact WPI

9400 Plum Drive, Suite 160
Urbandale, IA 50322
Phone +1 (515) 232-3623
Send an email

MENU

About WPI
Contact WPI
PO
Prepare for your WPI Exam
Make a Payment
Log In
Facebook Twitter Linkedin Youtube Instagram
  • TESTING SERVICES
    • Information for Testing Clients
      • Exam Validation
      • Exam Development Option
      • Exam Delivery & Reporting
        • Computer-Based Testing Demo
      • Standardized Exams
    • ABC Testing
    • Standardized Exams
      • Standardized Water Treatment Operator Exams
      • Standardized Water Distribution Operator Exams
      • Standardized Wastewater Treatment Operator Exams
      • Standardized Wastewater Collection Operator Exams
    • Examination Resources
      • Information for Examinees
      • Study Guides
      • Exam References
        • Backflow Prevention Assembly Tester Exam References
        • Biological Industrial Waste Treatment Operator Exam References
        • Biosolids Land Applier Exam References
        • Physical Chemical Industrial Waste Treatment Operator Exam References
        • Plant Maintenance Technologist Exam References
        • Small Wastewater System Operator Exam References
        • Water Treatment Operator Exam References
        • Wastewater Treatment Operator Exam References
        • Wastewater Collection Operator Exam References
        • Water Distribution Operator Exam References
        • Water Laboratory Analyst Exam References
        • Wastewater Laboratory Analyst Exam References
        • Very Small Water System Operator Exam References
      • 2025 Need-to-Know Criteria
      • Formula/Conversion Tables
    • FAQ
  • CERTIFICATION
    • Certification Program
    • Certification Process
      • Certification Through Examination
        • Examination Resources
      • Certification by Reciprocity
    • Professional Operator
    • Operator Certification
    • Certification Renewals
    • Ohio EPA Certification
    • OpCert Program Contacts
    • FAQ
  • MEMBERSHIP
    • Become a Member
      • Benefits of Becoming a Member
      • Associate Membership
      • Certification Program Membership
      • Non-Regulatory Certification Program Membership
    • Make a Payment
    • WPI Members
  • ABOUT US
    • About Us
    • Read Our IMMERSE Blog
    • WPI Awards
      • WPI Awards Nominations
      • Award Recipients
    • WPI Staff
    • Board of Directors
      • Board of Directors Nominations
    • Certification Commission for Environmental Professionals
    • Annual Reports
    • Get Involved
      • Volunteer Testimonial
    • Login
    • Make a Payment
    • WPI Brand Management
  • EVENTS
    • WPI’s Annual Conference – Innovation in Certification
      • IiC23 – Innovation in Certification Conference
      • IiC24 – Innovation in Certification Conference
      • IiC25 – Innovation in Certification Conference
Make A Payment
  • TESTING SERVICES
    • Information for Testing Clients
      • Exam Validation
      • Exam Development Option
      • Exam Delivery & Reporting
        • Computer-Based Testing Demo
      • Standardized Exams
    • ABC Testing
    • Standardized Exams
      • Standardized Water Treatment Operator Exams
      • Standardized Water Distribution Operator Exams
      • Standardized Wastewater Treatment Operator Exams
      • Standardized Wastewater Collection Operator Exams
    • Examination Resources
      • Information for Examinees
      • Study Guides
      • Exam References
        • Backflow Prevention Assembly Tester Exam References
        • Biological Industrial Waste Treatment Operator Exam References
        • Biosolids Land Applier Exam References
        • Physical Chemical Industrial Waste Treatment Operator Exam References
        • Plant Maintenance Technologist Exam References
        • Small Wastewater System Operator Exam References
        • Water Treatment Operator Exam References
        • Wastewater Treatment Operator Exam References
        • Wastewater Collection Operator Exam References
        • Water Distribution Operator Exam References
        • Water Laboratory Analyst Exam References
        • Wastewater Laboratory Analyst Exam References
        • Very Small Water System Operator Exam References
      • 2025 Need-to-Know Criteria
      • Formula/Conversion Tables
    • FAQ
  • CERTIFICATION
    • Certification Program
    • Certification Process
      • Certification Through Examination
        • Examination Resources
      • Certification by Reciprocity
    • Professional Operator
    • Operator Certification
    • Certification Renewals
    • Ohio EPA Certification
    • OpCert Program Contacts
    • FAQ
  • MEMBERSHIP
    • Become a Member
      • Benefits of Becoming a Member
      • Associate Membership
      • Certification Program Membership
      • Non-Regulatory Certification Program Membership
    • Make a Payment
    • WPI Members
  • ABOUT US
    • About Us
    • Read Our IMMERSE Blog
    • WPI Awards
      • WPI Awards Nominations
      • Award Recipients
    • WPI Staff
    • Board of Directors
      • Board of Directors Nominations
    • Certification Commission for Environmental Professionals
    • Annual Reports
    • Get Involved
      • Volunteer Testimonial
    • Login
    • Make a Payment
    • WPI Brand Management
  • EVENTS
    • WPI’s Annual Conference – Innovation in Certification
      • IiC23 – Innovation in Certification Conference
      • IiC24 – Innovation in Certification Conference
      • IiC25 – Innovation in Certification Conference
Make A Payment
Ask WooPI!

Benefits of Becoming a Member

WPI Membership Will Benefit Your Organization

Online OpCert Program Database

The list of OpCert Program Contacts is at your fingertips under the CERTIFICATION tab on the home page. The database contains more than 130 programs from around the globe organized by state, province/territory, or certification category. If you’re a certification contact and need to have your program’s information updated, please send your request to: wpi@gowpi.org.


Networking

WPI is a professional association that facilitates the exchange of ideas, information, and strategies that work. Connect with our membership of professionals from 49 U.S. states/territories, 12 Canadian provinces/territories, many Canadian First Nations and U.S. tribal entities, as well as many Eastern European, Caribbean, and Middle Eastern countries/territories.


ABC Testing

WPI’s testing service, ABC Testing, has been built around data collected from scores of environmental certifying authorities and thousands of job practitioners. C2EP uses information gathered by Subject Matter Experts (SMEs) from all over the world to create nationally validated, cost-effective, standardized exams that ensure operator competence in support of environmental certification programs.*


Involvement Opportunities

With continued membership, regulatory and non-regulatory certification program class member representatives are eligible to nominate, vote, and hold office. Voluntary program class member representatives may nominate and vote for any position and hold the office of At-Large Division Director.*


Annual Conference

Membership includes discounts to WPI’s annual Innovation in Certification conference. IiC is your opportunity to network with fellow industry professionals from across the globe.


Publications

WPI disseminates industry news relevant to its members through our biweekly, members-only newsletter, The Certifier. WPI also publishes the key industry publications Need-to-Know Criteria, Model Standards of Operator Certification, and exam validation guidelines.


Savings

Our members are entitled to special discounts, including reduced Conference, Workshop, service, and publication fees. In addition, members have access to WPI’s internationally recognized Testing Service providing cost-effective exam solutions.


Recognition

To honor outstanding contributions toward establishing or advancing certification programs, WPI presents the following awards:

  • Harris F. Seidel Lifetime Achievement Award – honoring individuals for lifetime service
  • Robert C. McAnespie Outstanding Certification Officer Award – awarded to a member certification officer *
  • Certification Program Award – presented to a member certifying authority *
  • The Jess Jones Excellence in Service Award – presented to an individual or group for service to WPI

* Benefit not available to Associate Members.

To learn more about membership, send an email to wpi@gowpi.org. To apply for membership, visit the Certification Program Membership or Associate Membership pages.

WPI Voluntary Certification Process >
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Upcoming Events

WPI will be hosting a POWER event in San Antonio, Texas June June 13th at AWWA’s ACE22 where we will be honoring the most recent PO Certifications in a pinning ceremony.  Contact us if you would like us to honor YOU.

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9400 Plum Drive, Suite 160
Urbandale, IA 50322
Phone +1 (515) 232-3623
Send an email

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