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

Certification by Reciprocity

To apply for WPI Certification by Reciprocity, please enroll in the correct application on Certemy, our Certification Management Software, as found in the links below. If you are new to the Certemy platform, please register for a new account. If you already have a Certemy account, please select “Sign In” to ensure the new application gets added to your existing account. After you have used the initial link, please use wpi.certemy.com for all future login attempts. From there, you will want to complete all steps assigned to you- including filling out general information, work experience, current certificaion, education, payment, and the attestation. Once all steps are complete, WPI staff will review your application. If you are approved, a certificate will be issued. If you do not qualify for reciprocity, you will be moved into the exam phase.


Our team can help answer your certification questions.

If you are currently certified by another certification program and have taken and passed their certification exam with a score of 70 or above, you may qualify for certification through reciprocity.

Please contact WPI to determine if the exam you took is considered to be equivalent to the standardized exam. If you do not qualify for certification through reciprocity, you may take the class level of exam that is at the same level of your current certification instead of starting at the WPI Class I (lowest level) exam, provided that you meet the other eligibility criteria.

For more information on certification through reciprocity, visit Get Certified.

Very Small Water System Reciprocity

Self Enrollment

Water Treatment I Reciprocity

Self Enrollment

Water Treatment II Reciprocity

Self Enrollment

Water Treatment III Reciprocity

Self Enrollment

Water Treatment IV Reciprocity

Self Enrollment

Small Wastewater System Reciprocity

Self Enrollment

Wastewater Treatment I Reciprocity

Self Enrollment

Wastewater Treatment II Reciprocity

Self Enrollment

Wastewater Treatment III Reciprocity

Self Enrollment

Wastewater Treatment IV Reciprocity

Self Enrollment

Collection I Reciprocity

Self Enrollment

Collection II Reciprocity

Self Enrollment

Collection III Reciprocity

Self Enrollment

Collection IV Reciprocity

Self Enrollment

Distribution I Reciprocity

Self Enrollment

Distribution II Reciprocity

Self Enrollment

Distribution III Reciprocity

Self Enrollment

Distribution IV Reciprocity

Self Enrollment

Plant Maintenance I Reciprocity

Self Enrollment

Plant Maintenance II Reciprocity

Self Enrollment

Plant Maintenance III Reciprocity

Self Enrollment

Water Laboratory Analyst I Reciprocity

Self Enrollment

Water Laboratory Analyst II Reciprocity

Self Enrollment

Water Laboratory Analyst III Reciprocity

Self Enrollment

Water Laboratory Analyst IV Reciprocity

Self Enrollment

Wastewater Laboratory Analyst I Reciprocity

Self Enrollment

Wastewater Laboratory Analyst II Reciprocity

Self Enrollment

Wastewater Laboratory Analyst III Reciprocity

Self Enrollment

Wastewater Laboratory Analyst IV Reciprocity

Self Enrollment

Physical/Chemical Industrial Waste I Reciprocity

Self Enrollment

Physical/Chemical Industrial Waste II Reciprocity

Self Enrollment

Physical/Chemical Industrial Waste III Reciprocity

Self Enrollment

Physical/Chemical Industrial Waste IV Reciprocity

Self Enrollment

Biological Industrial Waste I Reciprocity

Self Enrollment

Biological Industrial Waste II Reciprocity

Self Enrollment

Biological Industrial Waste III Reciprocity

Self Enrollment

Biological Industrial Waste IV Reciprocity

Self Enrollment

Biosolids Land Appliers I Reciprocity

Self Enrollment

Biosolids Land Appliers II Reciprocity

Self Enrollment
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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