- Helpers such as diggers and people who move materials do not have to register. The person leading the work does.
- Every 2 years.
Do you need a state license in Maryland?
Maryland licenses some septic system work at the state level and leaves the rest alone. Which side of that line a job falls on decides whether you need the state license.
Helpers such as diggers and people who move materials do not have to register. The person leading the work does.
Steps to get licensed in Maryland
- Fill out the board's registration form.
- Send it with the $150 fee.
- Renew every 2 years, and watch for the board's new licensing rules.
Experience and other requirements
Experience. The official pages we read do not say. Check with the board (official site).
The license to apply for. Registration with the State Board of On-Site Wastewater Professionals.
Maryland septic installer exams
Trade exam. The official pages we read do not say. Check with the board (official site).
Business and law exam. The official pages we read do not say. Check with the board (official site).
What it costs in Maryland
The board lists one fee for this license. These are the state's own numbers. Insurance, any bond, exam prep and your business registration come on top.
| Fee | Amount |
|---|---|
| Registration, every 2 years | $150 |
Insurance and bond
Insurance. The official pages we read do not say. Check with the board (official site).
Bond. The official pages we read do not say. Check with the board (official site).
Renewal and licenses from other states
Renewal. Every 2 years.
Reciprocity. The official pages we read do not say. Check with the board (official site).
Good to know in Maryland
- One registration covers every septic service you offer: installing, pumping, maintenance and more.
- Property transfer inspections need a separate state license, which also counts as the board registration.
After you are licensed
The license lets you take the work. Getting the work is the next job.
- Register the business. If you work under a name other than your own, register it where your state asks (often the Secretary of State, sometimes the county), and keep the name the same on your license, your truck and your invoices.
- Claim your Google Business Profile. It is the listing people see when they search for septic installation near them. Fill in your service area, hours and real photos of your work.
- Put up a website that shows the license. Customers look for it before they call. Koira builds a contractor website for you and keeps it current.
- See where you stand. The free Koira report checks how your business shows up in search and on maps against shops near you.
Where this comes from
Every fact on this page comes from the Maryland Department of the Environment, State Board of On-Site Wastewater Professionals and the official pages below, checked October 9, 2026. Fees and rules change, so confirm with the board before you file.