Installer and Inspector Certification

Certification Programs Offered by IOWPA

  1. Installer Certification Program: Implemented in 2005 and revamped in 2010 to include continuing education in coordination with the new Indiana State Rule 410 IAC 6-8-3 effective November 19, 2012 and most recently updated in May 2014.
  2. Inspector Certification Program: Implemented in 2013 with the passing of legislation included in Senate Bill 204, Indiana Code 8-1-2-125 (f) (2).For the Inspector Certification, you are not required to be IOWPA Installer certified, however, if you aren’t, you will be required to attend the ISDH 410 Rule Training.


The objective of the certification programs is to educate wastewater professionals in regard to the Indiana State Rule 410 IAC, to assure consistent application throughout the state. Both certifications (Installer and Inspector) are for individuals. This certification is not transferable and only certifies the individual in attendance that passes the exam.

Certification Details

  • Our certifications are recognized by more than 50% of the counties in Indiana but each county may have their own guidelines.  In counties recognizing inspector certification, inspections made by anyone other than an IOWPA Certified Inspector will be considered fraudulent. In counties recognizing installer certification, for the installation to be certified the certified individual must be physically onsite for the installation.
  • IOWPA offers installer certification for three systems.
    • A: Subsurface Trench Gravity Feed Systems (required for certification)
    • B: Subsurface Trench Flood Dosed Systems (optional)
    • C: Pressure Distribution and Elevated Sand Mounds (optional)
  • IOWPA requires all certified professionals (inspectors and installers) to maintain annual membership in IOWPA and earn a minimum of 20 hours continuing education every three years in order to recertify.  There may be some individual counties that do not require these standards but this is an IOWPA certification and must be adhered to in order to be in good standing with IOWPA.
  • Each time the state rule is revised, we will post a copy on our website (see Indiana State Rule 410 button above).  Upon the passing of each revised rule, all certified professionals are required to RETEST or sign the required document stating they have read and understand the revisions.


Onsite Sewage Inspection Forms

IOWPA has also developed Onsite Sewage System Inspection documents — the Inspection Form and the Inspection Summary Report. Having been adopted by all county health departments, only Inspections using the IOWPA-developed Inspector documents will be recognized.




Visit the Indiana State Department of Health’s Environmental Division/Onsite Sewage Systems Program page which provides detailed information regarding approved technologies.

Certification FAQs

Both certifications (Installer and Inspector) are for individuals. This certification is not transferable and only certifies the individual in attendance that passes the exam.

Yes. For both Installer and Inspector, the service/installation is considered fraudulent if the certified professional is not on site and penalties may apply.

Installers are typically experienced contractors who install state approved onsite sewer systems for residential.

Inspectors may be installers, realtors, home inspectors, environmental health officers, etc.

Recertification is required every three years based on IOWPA approved continuing education.

Upon proof of 20 hours of IOWPA approved continuing education and submitting a recertification fee of $25, you may be recertified. Maintaining your annual membership dues is also required.

If you attend IOWPA sponsored programs and sign the attendance sheet, IOWPA will keep track of your attendance. (Go to CEU Search)

If you attend non-IOWPA sponsored events (WWETT, ISDH, IEHA or Local County Health Department trainings) it is your responsibility to confirm if the meeting host is providing a sign-in sheet AND if they are approved for IOWPA continuing education.

Be organized…keep your files together until it is time to recertify. PLEASE DO NOT send them throughout the three year period. You need to keep them until it is time to recertify.

Not typically. All IOWPA educational programs provide credit for both certification programs. For example, one hour of IOWPA conference education will provide one hour for the Installer’s certification AND one hour for the Inspector’s certification. Your hours expire within the recertification periods, so be sure to check the website regularly.

It is based solely on the counties where you install. Many counties now require installers to be IOWPA certified. This list of counties changes frequently. It is best to contact your Local Health Department’s Environmental Health Officer to confirm the requirements the county where you wish to work.

IOWPA only recognizes the IOWPA developed Inspection Report and Summary, which must be completed in its entirety based on the system you are inspecting plus sketches and photos of components, inspected.

Still have questions?
Please contact the IOWPA office at 317-965-1859 or