Becoming a certified septic installer in North Carolina doesn’t have to be confusing. This guide breaks the process into simple steps, explains exactly what you need, and shows you the fastest path to getting your license.

Everything required to become a certified installer is taught in the 24-Hour Introductory Installer Course offered by Onsite Wastewater Professionals.

Why NC Requires Installer Certification

North Carolina regulates installers to protect public health, groundwater, and homeowners. Certification ensures that only trained, qualified professionals install septic systems across the state.

Step 1: Complete the Mandatory 24-Hour Introductory Class

All new installers must take a 24-hour Introduction Course before applying for certification.

What you learn in the class

• NC installation rules and standards
• Gravity and pump systems
• Sand-lined trenches and fill systems
• Hands-on fundamentals
• Exam preparation
• How to assemble your application packet

👉 Register for the 24-Hour Installer Class 

Step 2: Apply for the NCOWCICB Installer Exam

After your class, you can apply to take the Board exam. Onsite Wastewater Professionals also helps you complete all paperwork correctly in class.

Exam details

• 50 multiple-choice questions
• Administered by the NCOWCICB
• Required documents must be received 15 business days before the exam date

Documents you need

• Completed Application for Certification
• Attendance Certificate from the 24-Hour class
• Exam Application
• Certification Fee ($200.00)

Step 3: Mail Your Certification Package

Mail your full application to:

NCOWCICB
P.O. Box 132
Lawsonville, NC 27022

Your 24-Hour class includes support assembling this packet so nothing is missed.

Step 4: Pass the Installer Exam

Once you pass, you become a Grade Level II Installer, allowing you to install:

• Gravity systems
• Single-pump or single-siphon systems
• Grease trap systems
• Sand-lined systems
• Fill systems
• Most residential systems in NC

This is where every new installer starts.

Step 5: Complete Continuing Education & Renew Annually

Installer certifications expire December 31st each year.
Renewals are due by November 15th.

Annual CE requirements

• Level II Installers: 3 hours
• Level IV Installers: 6 hours
• Inspectors: 6 hours

CE courses for renewal are offered each year by Onsite Wastewater Professionals.
👉 View Upcoming Continuing Education Classes

Upgrading to Level IV (Unlimited Installer)

After two years of Level II experience, you can apply for Level IV certification.
This level allows you to install all subsurface wastewater systems, including advanced and high-flow designs.

Checklist: How to Become a Septic Installer in NC

✔ Take the 24-Hour Introductory Class
✔ Submit your certification and exam application
✔ Pass the 50-question exam
✔ Complete CE hours each year for renewal

Why Choose Onsite Wastewater Professionals

• Onsite Wastewater Professionals is one of the nation’s leading installer training providers, serving students across multiple states with board-approved certification programs.
• Instructors with real-world installation experience.
• Visit actual installations and get hands on training doing system layouts, setting floats, and more.
• Year-round CE courses offered in NC, SC, and VA.
• Active support community and updates from our team.
• Up-to-date training aligned with NCOWCICB rules

Joining the OWP mailing list ensures you never miss renewal deadlines, CE requirements, or exam dates.

Final Thoughts

The certification process might seem complex at first, but taking the 24-Hour Introductory Installer Class makes everything simple. You’ll leave with the knowledge, paperwork, and confidence needed to apply for your license and begin your career as a certified septic installer in North Carolina.