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

Water Treatment I Reciprocity

Water Treatment II Reciprocity

Water Treatment III Reciprocity

Water Treatment IV Reciprocity

Small Wastewater System Reciprocity

Wastewater Treatment I Reciprocity

Wastewater Treatment II Reciprocity

Wastewater Treatment III Reciprocity

Wastewater Treatment IV Reciprocity

Collection I Reciprocity

Collection II Reciprocity

Collection III Reciprocity

Collection IV Reciprocity

Distribution I Reciprocity

Distribution II Reciprocity

Distribution III Reciprocity

Distribution IV Reciprocity

Plant Maintenance I Reciprocity

Plant Maintenance II Reciprocity

Plant Maintenance III Reciprocity

Water Laboratory Analyst I Reciprocity

Water Laboratory Analyst II Reciprocity

Water Laboratory Analyst III Reciprocity

Water Laboratory Analyst IV Reciprocity

Wastewater Laboratory Analyst I Reciprocity

Wastewater Laboratory Analyst II Reciprocity

Wastewater Laboratory Analyst III Reciprocity

Wastewater Laboratory Analyst IV Reciprocity

Physical/Chemical Industrial Waste I Reciprocity

Physical/Chemical Industrial Waste II Reciprocity

Physical/Chemical Industrial Waste III Reciprocity

Physical/Chemical Industrial Waste IV Reciprocity

Biological Industrial Waste I Reciprocity

Biological Industrial Waste II Reciprocity

Biological Industrial Waste III Reciprocity

Biological Industrial Waste IV Reciprocity

Biosolids Land Appliers I Reciprocity

Biosolids Land Appliers II Reciprocity

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.