Licensing Guides
Montana Septic License: How to Become a Septic Contractor in Montana
Septic, MT
October 1st, 2026
Table of Contents
What Are the Reciprocity Requirements for a Septic License in Montana?
What Are the Penalties for Unlicensed Septic Work in Montana?
Septic License Requirements in Montana
We all need safe, reliable sewage management to protect water quality in our homes and businesses. Those homeowners and businesses that rely on septic tanks, also known as on-site wastewater treatment systems, depend on people who know how to install and maintain those systems.
In Montana, approximately 40% of homes utilize onsite wastewater treatment systems, otherwise known as septic systems., according to Montana Waters.
There are about 30,650 septic tank servicers and sewer pipe cleaners employed nationwide, according to the U.S. Bureau of Labor Statistics (BLS), and Montana employs about 290 of them. Nationally, employment is projected to grow 8% from 2024 to 2034, with roughly 2,900 job openings each year, according to CareerOneStop, the U.S. Department of Labor's job search website, but in Montana, that growth rate is projected much higher at 23%.
Skilled trade workers remain in demand across Montana. Homes and businesses that rely on septic systems depend on trained pumpers and installers to keep those systems working safely, so completing the training and licensing you need can open the door to steady, well-paid work.
If you're thinking about starting a septic business or working in the field, you need to know the requirements in your state or local jurisdiction. This guide will help you determine what you need before you get started in the state of Montana.
The Montana Department of Environmental Quality licenses septic pumpers at the state level. Visit the DEQ resource page for additional information, including FAQs and the Homeowners Guide to Septic Systems.
Montana counties also have their own wastewater regulations and licensing requirements. County health departments are responsible for issuing septic permits and collecting permit fees as well as managing site evaluations, groundwater monitoring, and subdivision reviews.
Types of Septic Licenses in Montana
At the state level, Montana offers a Septic Tank Pumper license.The license is required for any person who is in the business of cleaning cesspools, septic tanks, portable toilets, privies, grease traps, drain fields, car wash sumps, campgrounds, trailer courts, food service establishments, or similar treatment works. The license also permits the disposal of septage and other wastes.
Missoula County offers a Septic System Installer license, issued by the City-County Department of Public Health.
According to the Department, hiring certified installers ensures that systems are installed in a way that does not degrade drinking water or environmental quality and mitigates situations where people come in contact with sewage.
Flathead County offers a Septic Installer license as well as a Self-Installer license for property owners who install their own systems.
Benefits of Getting a Septic License in Montana
There are several benefits to earning your Montana septic license:
It is required by law. Under Montana Code Annotated 75-10-1210, you cannot operate a septic-cleaning or septage-disposal business without a DEQ license.
A license is proof of your skill and experience.
Only licensed operators can legally advertise and run a septic business.
It lets you work with county health departments to pull permits and pass site inspections.
It protects both your customers and your business.
It can increase your earning potential and marketability.
What Is the Mean Wage for a Septic Professional in Montana?
Septic tank servicers and sewer pipe cleaners in Montana earn a median annual wage of $56,860, higher than the national median of $49,880, according to the U.S. Bureau of Labor Statistics' May 2025 estimates published through CareerOneStop.
Pay rises with experience. In Montana, the lowest 10% of these workers earn about $39,130 a year, while the top 10% earn about $79,170, according to CareerOneStop.
The terms mean wage and median salary can be confusing. Here is the difference:
Mean wage is the mathematical average of all wages.
Median salary is the point at which half of workers earn less and half earn more, and it is usually a better indicator of typical pay.
Salaries vary by city, experience, certifications, and whether you own a business. Starting your own septic operation can raise your earning potential further.
Steps to Get a Septic License in Montana
Follow these steps for a Montana Septic Tank Pumper license.
Complete the license application.
Include contact information.
Register your business with the Montana Secretary of State.
Include a check or money order for $300.
Include a signed affidavit from the county health officer where you plan to work.
Submit the license application to the Montana DEQ.
Follow these steps for a Septic System Installer license in Missoula.
Review the Septic Installer's Study Guide.
Pass an exam administered by the Department of Public Health.
Pay the $115 certification fee.
Follow these steps for a Septic Installer license in Flathead County.
Review the Study Guide for Licensed Installers.
Pass an examination administered by the County Environmental Health Office and pay the $120 exam fee.
How to Get a Septic License in Montana
Becoming a licensed septic professional in Montana is straightforward, but the exact path depends on the work you want to do.
State Septic Tank Pumper license. If you plan to clean septic tanks and dispose of septage, you apply directly to the Montana DEQ. You complete the license application, register your business name with the Montana Secretary of State, and include a signed certification from the county health officer where you plan to work confirming your disposal site and equipment meet requirements. For each new disposal site, the local health officer must certify that the site meets all applicable state and local requirements, per MCA 75-10-1212.
County installer licenses. If you want to install septic systems, you apply through the county where you will work. In Missoula and Flathead counties, that means reviewing the county study guide, passing a county-administered exam, and paying the certification fee before you can install systems.
How Much Does It Cost to Get a Septic License in Montana?
The fee schedule for the following license types include:
State-issued Septic Pumper license: $300
Missoula Septic System Installer license: $115 exam fee
Flathead County Septic Installer license: $120 exam fee
What Business Owners Need to Know
Getting the most out of a septic installation technician, no matter where they are in their licensing journey, takes work. ServiceTitan cloud-based, all-in-one septic business software gives technicians and business owners the technology they need to do the work efficiently, and the data they need to do it smartly.
ServiceTitan features:
SMS communications that keep customers informed about the technician's visit.
Location-specific service history, including recorded calls, accessible from the mobile app.
Required forms that ensure every job is done right, driving consistency.
The ability to build multi-option proposals with photos, on-site, in minutes.
Sales presentations that make conversations with customers easier and drive the average ticket.
Mobile payment acceptance, eliminating lost checks and increasing cash flow.
To learn more, schedule a demo with a product expert today.
How Long Does it Take to Get a Septic License in Montana?
Obtaining a septic license in Montana is relatively quick. Most Montana counties only require you to pass an examination to qualify for licensure.
Montana Septic Training Programs and Schools
Montana counties provide exam preparation, either through online courses or by providing study guides. Both Missoula and Flathead counties provide study materials to help candidates prepare for their examinations.
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Montana Septic Licensing Exam Details
The Missoula County licensing exam is open-book and includes a $115 exam fee. The exam covers the Septic Installer's Study Guide.
In Flathead County, you must pass an exam and pay the $120 exam fee. The licensed installer test covers everything on the Study Guide for Licensed Septic Installers, plus information on county regulations and construction standards.
How Can I Prepare for the Septic License Exam in Montana?
Montana's county installer exams are open-book, so preparation focuses on knowing the study materials and how to find answers quickly.
In Missoula County, study the Septic Installer's Study Guide before your exam.
In Flathead County, review the Study Guide for Licensed Installers, which also covers county regulations and construction standards.
Read the full study guide, tab the sections you expect to reference, and practice locating code and construction-standard answers so you can move efficiently through an open-book test.
Do I Need to Renew My Montana Septic License?
Yes. The Septic Pumper license requires annual renewal. Licenses expire Dec. 31, and renewal applications must be received by the Department of Environmental Quality no later than Jan. 31. The annual renewal fee is $300, according to MCA 75-10-1212. Operators who renew between Jan. 31 and April 1 while still working pay an additional $125 late fee.
The Septic System Installer license in Missoula requires annual renewal at a cost of $75.
In Flathead County, you must renew your license each year and pay the $65 renewal fee.
Does My Montana Septic License Work in Any Other State?
No. Because Montana licenses septic pumpers at the state level and installers at the county level, your Montana credential does not automatically transfer to another state. If you plan to work elsewhere, you will need to meet that state's or locality's own licensing requirements. Likewise, other states and counties set their own rules for whether they will recognize your Montana experience.
What Are the Reciprocity Requirements for a Septic License in Montana?
Montana does not offer septic license reciprocity at the state level. Instead, each county sets its own reciprocity policy, and many counties do not accept reciprocal agreements at all. If you hold a license from another state, contact the Montana DEQ for the state pumper license and the specific county health department for any installer license to confirm whether any of your prior credentials or experience will be recognized.
Septic-Specific Requirements in Montana
Montana's septic rules include a few requirements unique to the trade:
Septage disposal and land application. The state Septic Tank Pumper license covers the disposal of septage, and disposal sites must be approved by the Montana DEQ. Before a new disposal site is added, the local county health officer must certify that the site meets all applicable state and local requirements, per MCA 75-10-1212.
Vehicle and equipment inspection. Trucks used to land-apply septage must be inspected and certified by the county health officer as properly equipped before you can be licensed.
Self-installer option. Flathead County allows a property owner to install a septic system on their own primary residence after passing a written test and paying the associated fee, per the Flathead City-County Health Department. This option does not apply to contractors building for sale or rent.
National Septic Certifications
Other certifications can help you demonstrate your proficiency to potential employers and clients. The National Association of Wastewater Technicians and the National Onsite Wastewater Recycling Association offer certifications. Those and other professional certifications are not required but can add to your marketability and therefore increase your opportunity to make more money.
Other Requirements Unique to Montana
Because septic licensing in Montana is split between the state and the counties, a few extra requirements apply:
Business registration. The state pumper license application requires your business name as filed or registered with the Montana Secretary of State.
County-by-county rules. Counties set their own installer licensing, permitting, site-evaluation, and inspection requirements, so the process can differ depending on where you work.
County health officer certification. For the state pumper license, a county health officer must sign off on your disposal site and equipment before DEQ issues the license.
Are There Septic Scholarships in Montana?
There is no scholarship dedicated solely to septic work in Montana, but several programs support students entering the trades and the water and wastewater fields:
The Donald G. Willems Scholarship, offered through the Montana Section AWWA and the Montana Water Environment Association, provides a $1,500 award plus a student membership and conference registration to students pursuing water or wastewater careers.
The Montana State Fund Trade & Industry Scholarship awards $4,000 to trade and industry students at Montana colleges who demonstrate a commitment to workplace safety.
The National Association of Wastewater Technicians offers the William Hapchuk Memorial Scholarship to students pursuing wastewater careers.
In northwest Montana, the United Way Workforce Development Scholarship awards funds to recent high school graduates entering trades such as plumbing.
Start every scholarship application by completing the FAFSA and checking each program's current deadline.
How Can Someone Verify My Septic License in Montana?
Clients and employers can confirm a Montana septic license in a few ways:
State pumper license. The Montana DEQ publishes an annually updated list of licensed septic pumpers on its Septic Tank Pumper program page, organized by license number, county, and business name.
County installer licenses. Flathead County posts a list of licensed installers through its health department. In Missoula County, contact the City-County Health Department to confirm an installer's license.
When Can a Septic License Get Suspended in Montana?
The Montana DEQ can deny or revoke a state Septic Tank Pumper license, but only after written notice and an opportunity for a hearing. Under MCA 75-10-1221, the grounds are that a business or disposal site cannot be, or is not being, operated in compliance with state rules or orders. Refusing to allow DEQ or a county health officer to inspect a disposal site can also lead to denial or revocation of site approval.
Counties can revoke installer licenses on their own terms. In Flathead County, for example, a license may be revoked for installing a system before a permit is issued, installing without approval, or providing false information to obtain a permit.
Note: The information above should not be considered legal advice. For detailed requirements, refer to the Montana Code Annotated and your county's regulations.
What Are the Penalties for Unlicensed Septic Work in Montana?
Operating a septic-cleaning or septage-disposal business without a license is illegal in Montana. Disposing of septage in violation of the licensing law is a misdemeanor punishable by a fine of up to $500, according to MCA 75-10-1223.
The same statute also allows a civil penalty of up to $500 per day, with each day of violation treated as a separate offense. The DEQ or a county attorney can bring an action in district court to collect penalties or to stop the unlicensed work.
Note: The information above should not be considered legal advice. For a full explanation, refer to the Montana Code Annotated.
Continuing Education
The Montana DEQ does not list a continuing education requirement for the state Septic Tank Pumper license; renewal depends on submitting your application and fee on time. County installer licenses set their own rules, so check with your county health department for any continuing education or re-examination requirements. In Flathead County, for example, an installer who has not installed a system in the previous two years must retake the exam to renew.
Resources
You can stay up to date on all septic industry news several ways:
Check top septic blogs, including ServiceTitan's blog.
Read about the latest industry trends, and discover ideas on how to grow your septic business.
Listen to top septic podcasts like ServiceTitan's "Toolbox for the Trades" podcast.
The states have licensing requirements for other trades, too. You can find out more about how to get an HVAC, Plumbing, Electrical, or General Contractor license in Montana, or in any of the other 49 states and the District of Columbia through the ServiceTitan Licensing Hub.
