Maryland licenses the individual who works on a septic system, and the license is a state one — the
State Board of On-Site Wastewater Professionals, which the statute places inside the state environment
department. The subtitle states its own effect rather than leaving it to be inferred from the existence
of a credential. The prohibition at Md. Code, Environment Article, § 9-11A-20(a) is set out in the Installing section
below, and it forbids the work to an individual the Board has not licensed. The duty is written affirmatively as well, at § 9-11A-15(a)(1): “an individual shall be licensed
by the Board in accordance with this subtitle before the individual may provide on-site wastewater
services in the State”. Read the prohibition twice: offering is prohibited as well as doing,
so it reaches an advertisement and a quotation, not only a dug trench. The credential attaches to a person throughout — “A license
may not be borrowed, rented, or transferred to another individual.” — and nothing in the subtitle
licenses a business entity, which is the opposite of the firm-plus-individual shape some states use.
One credential reaches four trades here, which is unusual. § 9-11A-01(d)(1), quoted in the Installing
section below, defines the reached activity, and the categories the Board is
directed to build are trade categories in master and journey grades — designer, installer, pumper,
property transfer inspector, and operation and maintenance provider. So the installer, the pumper, the
designer and the transfer inspector are not four credentials in Maryland. They are one credential with
grades that the regulation writer has not finished building.
That unfinished rollout is the half of Maryland most often dropped, and it is the operative law for most
contractors in the state today. The same subtitle carries a transition clause, § 9-11A-15(a)(2)(i), set out in
the Installing section below: an individual already providing these services may carry on until the
Department’s licensing regulations exist, if that individual
“Complies with all applicable State and local laws and regulations”, paid the Department’s fee by the
date the subsection names, and pays a renewal fee “Every 2 years thereafter until the Department sets
fees in accordance with § 9-11A-10 of this subtitle”. The Department describes the same arrangement on
its own Board page: “Until the Board implements its new licensing requirements and procedures”, the
section “requires any individual who provides on-site wastewater services in Maryland to register with
the Board”, and “Registration is valid for a 2-year period.” Asked whether that registration requires
proof of insurance, the Department’s published answer is “No, this is solely for registration, not a
license.” The Act that created the Board set a date by which every provider was to hold the Board’s
license, and required implementing regulations before it; that date has passed, and the bills introduced
to move both dates did not become law. None of that makes a working Maryland contractor unlawful — the
transition clause is conditioned on the regulations existing, not on a calendar date — and none of it
makes the trade unlicensed either. Both halves have to be read together: the license alone
overstates what a reader holds today, and the registration alone understates what the statute
requires.
The duty does not reach everyone who works on a septic system in Maryland, and the subtitle scopes
itself twice in its own words — once by a class of person, once by a class of system. The class of person is the public
employee: § 9-11A-02(a) provides that “This subtitle does not apply to an individual employed by a
local, State, or federal agency while performing the duties of that employment.” The class of system
is a discharge and a daily volume rather than a trade: § 9-11A-01(e)(3)
writes out of the defined on-site wastewater system any wastewater treatment system that “Requires a
discharge permit from the Department” or “Treats 5,000 or more gallons per day”, so the largest jobs
fall outside the Board’s license while remaining inside the construction rules. What neither carve-out
does is soften anything for the contractor who holds the work. An individual doing the installation,
pumping, repair or property transfer inspection of an ordinary on-site wastewater system for a
private business stays inside the duty. So this page never claims the Board’s license reaches
every person who works on a septic system: § 9-11A-02(a) denies it in terms.
The state credential also does not discharge a county one, and this is the fact that pulls in the
opposite direction from a carve-out: it widens what a contractor must hold rather than narrowing it.
§ 9-11A-02(b) provides that “Nothing in this subtitle prevents or prohibits a local government from
imposing requirements, standards, or fees that are more stringent than the requirements, standards, or
fees established in this subtitle.” The Department answers the same question for contractors on its own
page — asked about a county that charges “a septic license fee and a septage hauler license fee
annually”, it says “Yes, the State law and regulations do not override any county or local
requirements.” One county publishes its own version in its own words: the Talbot County Health Department states on its
environmental-health page that “Septic Systems must be installed by a septic contractor that holds a
valid Sanitary Construction license issued by the Talbot County Health Department.” and that “Licenses
for Septic Contractors are issued on an annual basis.” That is one county’s published rule and it is
not Maryland’s rule; what generalizes is the direction. State and county are cumulative here, not
alternative, and the county roll is a second counter rather than a copy of the first.
The instrument most likely to be mistaken for the credential is the permit for one lot. COMAR
26.04.02.03E: “A person may not construct or attempt to construct an on-site sewage disposal system
without first receiving a permit from the Approving Authority.” That permit authorizes work on a single
lot and is time-limited, and the Approving Authority is a defined function — “the Secretary of the
Department of the Environment or the Secretary’s designee” — rather than a statutory name for the county
health department a contractor actually meets. The construction rules name this trade while assigning
the compliance duty: “Building and floating home contractors, septic contractors, plumbers, licensed
well drillers, drivers, and diggers, along with any person for whom the work is being performed, are
responsible for compliance with these regulations and COMAR 26.04.04.” A permit in hand is not a
credential, and a credential in hand is not a permit for the lot you are standing on.
Pumping and hauling septage is not a separate state permit here; it is the same credential with vehicle
duties stacked on top of it. Pumping sits inside the defined service, so the operator instrument is the
Board’s license, and the Board grades the category. What the construction rules add is imposed rather
than issued: the owner of each vehicle used to transport septage must “maintain the vehicle in a clean
and sanitary condition”, and “Each vehicle is subject to inspection by the Department or the
Department’s designee.” The identification rules are specific — “The name of the septage hauler is
legibly lettered on both sides of each vehicle used for transporting septage, and the lettering is at
least 3 inches in height”, with “Sewage Only” lettered on the rear at a height the same rule states. The
hauler license a Maryland contractor actually applies for is usually a county one, which the state rules
presuppose rather than issue. And one phrase is worth checking before anyone uses it in a bid: the
state’s sewage sludge utilization permit is about the residue a sewage treatment plant extracts, not
about septage, while at least one county licenses septage haulers under that very name — Montgomery
County’s Department of Permitting Services publishes that “A Sewage Sludge Utilization License must be
obtained by any person or company engaged in the business of cleaning and emptying septic tanks, holding
tanks, privies or other sewage disposal facilities.” Same words, two different instruments, two
different counters.
On the inspection side the picture is narrower: the property transfer inspector is the one on-site
wastewater category already written into regulation, and COMAR 26.31.01.03A carries the prohibition
itself, set out in full in the Inspecting and evaluating section below. The statute narrows it further — the defined
service “does not include any type of on-site wastewater system inspection other than a property
transfer inspection” — so it is not a general septic inspection license and it does not reach a
maintenance visit. It carries a long records duty that is a professional-liability fact before it is a
filing chore: the licensee must “retain all records of property transfer inspections for a period of 5
years and provide copies of these records to the Department upon request”. One warning about its
history, because the wrong version is still everywhere: the license moved to the Board’s own chapter
when its old statute and regulation chapter were repealed, and it kept its name.
Two further statewide requirements attach to a person standing on the job rather than to the business
that sent them, and both are Department certifications under the construction rules rather than Board
licenses. For a nitrogen-removal unit, COMAR 26.04.02.07H provides that “A person who has completed a
course of study approved by the Department for the installation of BAT, and has a certification of
qualification for installing BAT systems from the manufacturer, is required to be present on the
property while a BAT unit is installed.” The maintenance side is a different certification again: a
certified service provider is “an individual who is certified by the Department to perform operation and
maintenance on BAT systems”. A service provider is not an inspector, neither certification is the
Board’s license, and a crew list that merges the three will mis-describe all three when someone asks who was on
the property that day.
Workers compensation runs on a different axis and has no small-employer floor. Maryland requires every
employer to secure compensation for its covered employees, and the exclusions are by class of worker
rather than by count: § 9-205, in its entirety, reads “A casual employee is not a covered employee.”,
and § 9-227(a) provides that “Unless an election is made in accordance with this section, a sole
proprietor is not a covered employee.” The burden sits with the employer — “To overcome the presumption
of covered employment, an employer shall establish that the individual performing services is an
independent contractor in accordance with the common law or is specifically exempted from covered
employment under this subtitle” — so calling a crew member a subcontractor does not settle the question
in Maryland. The lawful routes are private ones: the statute lists “maintaining insurance with an
authorized insurer” first, and the fund that had long been the state’s insurer of last resort
was converted by statute into “a private, nonprofit, nonstock corporation organized under State law”.
There is no state fund in a Maryland septic contractor’s path.
Almost none of that is an insurance requirement, and the one place where Maryland’s licensing law does
condition a credential on coverage sits outside this trade’s own subtitle: the state’s trade-blind
contractor license for residential work. Business Regulation § 8-302.1(b) provides that “A licensed
contractor shall maintain general liability insurance in the amount of at least $500,000.” Whether that
license reaches a given septic job is a question this page does not answer in either direction, because
the same title disapplies the license requirement to a person who “is required by State or local law to
meet standards of competency or experience before engaging in an occupation or profession”, “currently
is licensed in that occupation or profession under State or local law”, and is “acting only within the
scope of that occupation or profession” — and how the Commission applies that to on-site wastewater work
is not something we could show you from a published source. Read the limit as what it is: a condition of
a different license, not a figure anyone should buy to.
The sections below set out each credential with
the authority it rests on, so you can check it rather than take our word for it.
