North Dakota licenses the people who install onsite wastewater treatment systems, and the
license is issued by the state — by the Department of Environmental Quality, which under NDCC
23.1-07.1-02(1) holds “the exclusive authority” to adopt the rules on licensing, permitting
and inspections. NDCC 23.1-07.1-03 creates the duty at subsection 1, whose sentence is set out
below: no individual may be in the business of installing these systems “unless the individual is
licensed.” The very next subsection
takes one class of installer back out of it. NDCC 23.1-07.1-03(2): “An individual is exempt from
the licensing requirements of this chapter if the individual is installing an onsite wastewater
sewage treatment system on the individual’s premises for the individual’s use.” Read together,
the duty and its exemption leave the license scoped rather than universal. A contractor is reached
without qualification, because engaging in the business is the thing the statute forbids
unlicensed. The owner installing on their own premises for their own use is written out of the
requirement. So the duty reaches some of the people who install these systems in North Dakota
and not every one of them — and if you are paid to do this work, it reaches you. And the license
is not the permit: NDCC 23.1-07.1-01(5) defines that second instrument, in words set out below,
as a local authorization to install, so the job itself is authorized by the local public health unit for the site.
One instrument says who may do the work. The other says this system may be built here. Holding
the first is not permission to begin.
The reason so much published material still sends a North Dakota installer to the wrong office
is that the office changed in 2025. Before that, local public health units licensed the
installer. A 2025 enactment created the chapter that now governs and moved the licensing
power to the state agency, and NDCC 23-35-08(5) now lets a board of health make its rules
“except rules regarding the licensing of onsite wastewater treatment system installers”. A new
applicant applies to the department. What survives is a closing class rather than a second
door: under NDAC 33.1-21-01-01(1), installer licenses issued by local public health units and
valid on the cut-off date “do not expire” until one of two ends arrives — December 31, 2026, or
the department’s own licensing rules, “whichever occurs first”. Either end of that window can arrive first, and the second
one was live when we read the state agency’s own septic systems page on September 22, 2026,
which said the agency “is currently drafting administrative rules to support implementation of
this program”. The same chapter also
puts a ceiling over the local layer. NDCC 23.1-07.1-02(3): “An ordinance enacted or adopted by a
county or city in accordance with a home rule charter, or an ordinance enacted or adopted by any
other political subdivision, in conflict with a rule adopted under this section is void.” That ceiling is not yet fully loaded, because the rules an ordinance could conflict with are
the ones still being written. Local septic ordinances have not been swept away.
Pumping and hauling is a separate credential from a separate title of the code, issued by the
same state agency. NDCC 61-28-04.1(1), set out in full below, requires anyone “engaging in the
business of servicing septic systems” to hold a department permit and to comply with its
conditions. It is one permit for the business rather than one per vehicle — a plate goes on
each servicing unit instead, and the classification is drawn by how many of them a servicer
operates. Two conditions of that permit reach further than a contractor expects. The examination
is annual and it runs down the payroll: NDAC 33.1-21-02-06(1) provides that “Septic system
servicers and their employees engaged in the servicing of septic systems are required to pass an
annual examination provided by the department.” And the permit governs disposal, which is an
exposure rather than paperwork — septage goes to a department-permitted treatment facility or is
land-applied, and NDAC 33.1-21-02-08(2) provides that “Class I septic system servicers shall
obtain the department’s written preapproval for land application sites.” The application asks
for the landowner’s signed permission for each site, which puts a hauler’s lawful disposal
options on a public document before any load is spread. One exemption in that chapter is
worth reading twice, because it is a fee exemption and not a permit exemption. NDCC
61-28-04.1(2)(d) says the department “may not establish or charge a permit or renewal fee for a
plumber licensed under chapter 43-18 who operates no more than one servicing unit” — relief from
the fee, not from the duty to hold the permit.
North Dakota credentials no septic inspector or evaluator — not at a property transfer, not
otherwise. That is a finding rather than a gap: four things reach the inspection function, none of them an
inspector credential, and the block below sets out each. Three other credentials will be
mistaken for one, and each is out of scope for a different reason: the home inspector, the
environmental health practitioner and the professional soil classifier. A registered home
inspector, for instance, cannot reach a septic system. NDCC 43-54-01(2) defines a home
inspection as a nonintrusive visual examination of named building systems and then adds, “The
term does not include an examination of items that are concealed or not readily accessible or
identification of concealed conditions or defects.” A tank and a drainfield are under the
ground by design. Nor did this research find any statewide requirement to inspect a system
before a sale; what it found was one public health unit’s own published evaluation service,
which is that unit’s practice rather than a state rule.
There is a second statewide license a septic business of any size is likely to hold, and it is
where North Dakota writes insurance into licensing. The contractor license with the secretary of
state is trade-blind: NDCC 43-07-02(1) forbids engaging in the business or acting in the
capacity of a contractor above a stated price per job without one, and NDCC 43-07-07(1) divides
the classes by the value of a single contract rather than by trade. It is a companion and not
the septic credential — the sentence that forbids installing a system without a credential is
the one in the environmental title. But its conditions are ours. NDCC 43-07-04(1): “A copy of a
certificate of liability insurance must be filed with the application and the contractor shall
submit a statement from North Dakota workforce safety and insurance that the contractor has
secured workforce safety and insurance coverage satisfactory to workforce safety and insurance.”
Renewal carries that forward and names the registrar as the certificate holder, and NDCC
43-07-04(3)(a) lets the registrar classify a license as not in good standing for a failure to
maintain the coverage. So a lapse here is a licensing event, not only an insurance one. The bond
question has an answer worth stating precisely: this chapter once carried a contractor’s bond
section and it was repealed in 1995. North Dakota does not bond its contractors now, and it did
not simply never do so.
Workers compensation is the North Dakota answer people disbelieve.
The statement of it, with its
citations, is in the workers compensation block below; what that block does not carry is what
follows from it, and three things do. There is no headcount floor — the definition of hazardous
employment turns on one or more employees employed regularly, and its four exceptions are
agriculture and domestic service, railroad employment, certain short-run nonresident
transportation, and religious organizations. A septic contractor is in none of them. Covering an
owner, a spouse or an officer is a separate election, and it is not a right: NDCC 65-07-02 lets
the state body “determine whether the applicant is a good insurance risk and may deny such
special contract”. Where there is a private market, a declined applicant goes elsewhere; for
this coverage in North Dakota there is no elsewhere. And the provision most worth a septic
contractor’s attention runs up the ladder — NDCC 65-04-26.2(1) treats an individual employed by
a subcontractor as an employee of the general contractor and leaves the general answerable for
the premium and the penalty the sub did not pay, and subsection 4 adopts the contractor
definition from the licensing chapter above. Because it adopts the same contractor definition the
license runs on, the up-the-ladder rule reaches exactly the class of business that hires a septic
crew, which is why the certificate in the paragraph above is asked for so often.
None of the three septic credentials above carries an insurance condition of its own. The
trade-blind license beside them does, and the workers compensation duty is one no market stands
behind — which is why this page keeps the three questions apart.
The sections below set out each
one with the authority it rests on and a link to the source, so you can check the law rather
than take this page’s word for it.
Tell us where the work actually happens and what
you do when you get there, and we will tell you which of these reaches you.
