Montana · Landscaping licensing · official-source guide
Montana now licenses the work. The Montana Department of Labor and Industry licenses every construction contractor as of January 1, 2026 under House Bill 239, which covers hardscaping and other improvements attached to real estate. The Montana Department of Agriculture separately licenses a landscape service that sells nursery stock and any commercial pesticide applicator. Proof of workers compensation compliance is part of the contractor application.
State-level license
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Verify a licenseVerified against agency sources on 2026-10-12. Rules and fees change; confirm with the named authority before relying on this guide.
Three Montana agencies touch a landscaping business, and the one that matters most changed this year. The Montana Department of Labor and Industry runs the Construction Contractor License program. The department states that effective January 1, 2026 all construction contractors in the state of Montana are required to be licensed, and that contractors holding an active Montana registration as of December 31, 2025 were converted to the new license. House Bill 239 from the 2025 session made that change, moving the state from a registration framework to a licensing program. The Montana Department of Agriculture licenses two things a landscaper does routinely: selling or distributing nursery stock, and applying pesticides for another person. The Montana Board of Architects and Landscape Architects licenses landscape architects and controls who may use that title. No Montana law requires a design license to install plants, build a patio, or run a mowing crew. What the law does instead is attach a separate credential to each regulated activity. One company that designs, plants, builds hardscape and sprays weeds can end up holding a construction contractor license, a nursery license and a pesticide applicator license at the same time, each with its own renewal date and its own penalty schedule. Read every one of them against the work you actually sell, not against the title on your business card.
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The program is run by the Business Standards Division of the Montana Department of Labor and Industry, which lists the contact for the Construction Contractor License program as dlibsdhelp@mt.gov and (406) 444-6880. Applications and renewals are completed online. The purpose clause the department quotes, 37-45-101, is to protect the public health, safety, and welfare through the regulation of construction contractors. The department also publishes the unprofessional conduct rule for the program, ARM 24.227.2301. Under that rule it is unprofessional conduct to fail to notify the department within 30 days of any change to ownership or business name, or any change in business officers, members or partners that has been or must be reported to the Secretary of State. It is also unprofessional conduct to violate a federal, state or local law or rule relating to the conduct of the occupation, and to engage a person to perform work for which that person is not licensed. That last clause reaches the way most landscaping companies actually staff a build. If you sub out the retaining wall, the sprinkler tie-in or the spray work, the subcontractor needs to hold whatever license that scope requires, and hiring an unlicensed one is conduct the department can act on against your license. Keep copies of your subcontractors' license numbers in the job file.
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The statutory definition the department publishes is broad. A construction contractor is a person, firm or corporation that, in the pursuit of an independent business, offers to undertake, undertakes, or submits a bid to construct, alter, repair, add to, subtract from, improve, move, wreck or demolish for another a building, highway, road, railroad, excavation, or other structure, project, development or improvement attached to real estate. A second branch covers a person doing similar work on their own property who employs members of more than one trade on a single job or under a single building permit. Read against a landscaping scope of work, that language reaches paver patios, retaining and seat walls, steps, grading and excavation, drainage, driveways and walkways, pergolas and other attached structures, and the trenching and buried pipe of an irrigation system. Those are improvements attached to real estate, and a bid to build one is a bid a construction contractor submits. Routine mowing, pruning, fertilizing and seasonal cleanup are maintenance rather than construction, and the definition does not reach them on its face. The practical line for a Montana landscaping company is not the plant list, it is whether you are building something that stays attached to the ground. If a single proposal mixes maintenance and construction, price it knowing the construction half is licensed work.
Section 37-45-104 lists the exemptions, and several of them matter to a landscaping company. Work on one undertaking or project considered of a casual, minor or inconsequential nature is exempt where the aggregate contract price for labor, materials and all other items is less than $2,500 a job. The statute closes the obvious loophole: that exemption does not apply where the work is only part of a larger operation, or where the operation was divided into contracts under $2,500 a job to evade the chapter. The chapter also does not apply to a farmer or rancher while engaged in a farming, dairying, agriculture, viticulture, horticulture, or stock or poultry operation, to an irrigation district or reclamation district, or to clearing or other work on rural land for fire prevention purposes. It does not apply to the sale or installation of finished products, materials or articles of merchandise that are not actually fabricated into and do not become a permanent fixed part of a structure, or to a person who only furnishes materials, supplies or equipment. Owners working on their own property are exempt, with an exception aimed at building to sell promptly. Architects, civil and professional engineers and professional land surveyors licensed in Montana are exempt when acting solely in a professional capacity, as are Montana licensed electricians and plumbers operating within the scope of their licenses. Check your own facts against the list before you assume you are outside the chapter.
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The license information page for the Construction Contractor License program states an application fee of $70.00, which is non-refundable, and a renewal fee of $70.00. The renewal period runs on the anniversary date of issuance and opens 60 days before the expiration date. A late renewal costs $70 in addition to the renewal fee under ARM 24.101.103(2). Continuing education is not required. The page lists no examination for the license. Section 37-45-201 sets out what the license must include: the applicant's social security number, proof of compliance with workers' compensation laws, the Internal Revenue Service employer identification number if any, and the name and address of each partner of a firm or partnership, the owner of an individual proprietorship, the corporate officers and registered agent of a corporation, or the manager of a manager-managed limited liability company or the members of a member-managed one, plus the registered agent. Section 37-45-203 requires each applicant to pay an application fee established by the department, directs the fees into a special revenue account for administration and enforcement, and requires the department to run a consumer and industry education program about contractor licensing. Workers' compensation is the piece that trips up growing crews. Under 39-71-401 the Workers' Compensation Act applies to all employers and all employees, with sole proprietors and working members of partnerships and member-managed limited liability companies outside it unless they elect coverage. Hire your first seasonal laborer and you are an employer.
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This is the Montana license most landscapers do not know exists. Section 80-7-106 requires a firm, nursery, plant dealer or landscape service engaging in the business of selling or distributing nursery stock in the state to obtain a license from the Montana Department of Agriculture for each location. Section 80-7-105 defines a landscape service as a firm that buys, sells, or resells nursery stock, and defines nursery stock as botanically classified plants or parts of plants, including tropical potted plants, aquatic plants, and turf or sod grass. Buy trees and shrubs wholesale and plant them on a client job and you are buying and reselling nursery stock. The department states the rule plainly: if you sell plant material in the state of Montana, you must have a nursery license. The published fee for a landscape service is $150, and the statute sets that fee in a range of not less than $150 and not more than $200. A sod farmer pays $220 under the published schedule. Firms, nurseries and plant dealers pay on gross annual sales of nursery stock: $25 up to $5,000 in sales, $135 from $5,001 to $75,000, $200 from $75,001 to $150,000, $300 from $150,001 to $250,000, and $400 above $250,000. A landscape service that sells nursery stock pays the landscape service fee or the nursery fee, whichever is greater. Missing the annual anniversary date adds a nonrefundable $25 late fee per location. Licenses are bought through the eStop Business Licensing portal.
The nursery chapter regulates how you present plants, which makes it an advertising rule as much as a licensing one. Section 80-7-133 makes it unlawful for a firm, nursery, plant dealer or landscape service to fail to properly identify nursery stock offered for sale. Identification must include the scientific name, the common name and the variety, except for mixed annual plantings, and each nursery plant offered for sale as a separate plant must be identified. A single means of identification is allowed on each bundle of bare root seedlings, liners, or hedging grade stock. The same section makes it unlawful to falsely represent the name, age, variety or class of nursery stock, to state that stock was grown in a certain location when it was grown elsewhere, to deceive a buyer by substituting inferior or different varieties or ages from those ordered, to offer stock infected or infested with a plant pest dangerous to Montana agricultural or horticultural interests or in violation of a federal or state quarantine, and to sell or distribute nursery stock, cut decorative plants or aquatic plants declared noxious weeds under 7-22-2101. The chapter treats noxious weeds as plant pests. A violation is a civil offense carrying a civil penalty of up to $1,000 for each violation, deposited in the state nursery account. The department may also refuse or revoke a license on a verified complaint that a licensee failed to comply.
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Section 80-8-203 makes it unlawful to engage in the business of applying pesticides for another without a pesticide applicator's license from the Montana Department of Agriculture. The statute sets the application fee at $75 and adds an annual $10 fee for the waste pesticide and pesticide container collection, disposal and recycling program, which the department may adjust by rule within a range of not less than $10 and not more than $15 a year. The department publishes the combined cost as $85.00 per year, plus $25.00 per operator for the first two operators and $10.00 per operator for additional operators. The license covers the business. A person employed only to operate application equipment, with no financial interest in or control over the equipment beyond its day-to-day mechanical operation, does not need the applicator license, but an applicator is responsible for the use of any pesticide by an operator or employee under supervision or employment. The department states that applicator licenses expire each December 31 and must be renewed annually before pesticides are applied, which means a lapsed license in March stops spring work. Nonresidents licensed to operate in Montana must file a written power of attorney designating the secretary of state as agent for service of process unless they already have a duly appointed resident agent, and the department must be furnished a certified copy.
Licensing runs through examinations. The department requires an applicator to pass a core exam and the category-specific sections for general and restricted use products with a score of 80% or better. Core certification is required of every pesticide applicator and dealer seeking a Montana license, and the study materials are the National Pesticide Applicator Certification Core Manual together with Montana State Laws and Regulations Pertaining to the Use of Pesticides. On top of core, commercial, noncommercial, special utility and government applicators must pass exam questions tied to the pest categories they work in. For landscaping the controlling category is (3) Ornamental and Turf Pest Control, which the department defines as covering any applicator using or supervising the use of pesticides to control pests in the maintenance and production of ornamental trees, shrubs, flowers and turf. Two neighbors matter if your scope drifts: (6) Right-of-Way, Rangeland, Pasture and Noncrop Pest Control covers weed and vegetation management on roads, power lines, pipelines and similar noncrop areas, and (7) Industrial, Institutional, Structural and Health Related Pest Control covers work in, on and around dwellings and other structures and adjacent areas. The department offers free pesticide applicator examinations proctored at its seven field offices around the state. Its self-paced initial core training costs $50 and includes the National Core manual and the initial core packet, and the department notes that recertification credits are not available for that training.
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The pesticide license carries the only state-set insurance floor a Montana landscaping company is likely to meet. The department states that commercial applicators, except seed treatment applicators and vertebrate pest control applicators using only ground applied baits, must meet financial liability requirements, and that those requirements may be met only through liability insurance. An aerial applicator must carry minimum liability insurance of $50,000. All other applicators must carry minimum liability insurance of $30,000. The financial responsibility must be maintained in full force and be effective during the entire licensing period, and the license holder must provide physical proof of current insurance on request. The department states that license holders without current liability insurance are noncompliant, and points to ARM 4.10.101 through 4.10.104 for the requirements and exemptions. Record keeping is a separate obligation with its own rule. Applicators must keep all application records for two years and provide them to the department on request, in compliance with ARM 4.10.207. If no restricted or general use pesticides were applied during a period, that fact must also be documented, so an empty month still needs a record. The department publishes a sample recordkeeping form and a financial responsibility form with its pesticide files. Note the contrast with the construction contractor license, where the published license information page sets no insurance minimum at all.
Montana runs pesticide recertification on credits rather than a retest. The Department of Agriculture approves all trainings for pesticide applicators and dealers regardless of location and license type, and states that generally over 400 trainings are approved for continuing education credits each year, sponsored by the department itself, by industry, professional organizations, online training providers and universities. For the commercial side, the department states that commercial applicators must earn 12 credits every 4 years per category, with six of those credits obtained through in-person training. Private applicators are on a different cycle and must earn 6 credits every 5 years. Categories expire on a rotating schedule rather than all at once, and the department publishes which ones are up each year. Ornamental and Turf, category (3), was listed among the commercial categories expiring at the end of 2026, alongside aquatic pest, dealer, forest pest, non-soil fumigation, piscicide, special utility and wood product pest control. In-person fall recertification training was offered at six locations around the state at a cost of $30 per training, with the topics and available credits varying by location. Plan the in-person half of the requirement early, because only six of the twelve credits can come from other formats. The construction contractor license has no continuing education requirement at all, so pesticide credits are the recurring classroom obligation in this trade.
The Montana Board of Architects and Landscape Architects licenses landscape architects. The board publishes a license application fee of $325.00. Initial licensure by exam requires passing all parts of the Landscape Architect Registration Examination and holding a complete CLARB record that verifies the education and experience requirement, or evidence of meeting the education and experience requirements in ARM 24.114.1402. Licensure by endorsement requires CLARB verification of passing the exam plus a current CLARB record or verification of licensure in another jurisdiction. The board sets five education and experience combinations: an accredited degree plus two years of practical experience in landscape architecture; a non-accredited landscape architecture degree plus three years; a bachelor's degree in another field plus four years; an associate degree plus six years; or no post-secondary education plus eight years. A year is defined as 2000 hours. Two thirds of the experience must be under the direct supervision of a landscape architect, and the remaining hours may be under a licensed civil engineer, a licensed architect, or a city planner certified by a nationally recognized certifying body. Renewal is annual, with regular renewal dates of May 2 through June 30, an active renewal fee of $170, and a late renewal fee of $170 plus an additional $170. Licenses go to natural persons only, and each partner in a partnership of landscape architects must be licensed. A licensee must display the license at the principal place of business and stamp drawings and specification title pages with a board approved seal reading "Licensed Landscape Architect, State of Montana".
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This is the sharpest advertising rule in the trade, and it is written as a carve-out. Section 37-66-105(2) says the landscape architecture chapter does not apply to any business conducted in the state by a horticulturist, nursery operator, landscape nursery operator, gardener, landscape gardener, landscape designer, landscape artist, landscape contractor, or land use planner, as those terms are generally used. The same subsection then draws the line: an unlicensed person may not use the title landscape architect or landscape architecture, or any description tending to convey the impression that the person is a licensed landscape architect. Section 37-66-302 repeats it for advertising, barring a person from using the designation or advertising any title or description tending to convey that impression unless licensed with the board. Section 37-66-104 makes it unlawful to offer to practice or hold out to the public that you are entitled to practice landscape architecture without a license. So landscape contractor, landscape designer and landscape gardener are lawful on your truck, your website, your estimates and your ads. Landscape architect, landscape architecture and anything that reads as licensed design practice are not, unless a licensee stands behind the work. One more trap sits in 37-66-303(3): a person applying to a county or city licensing official for a business license to practice landscape architecture must show current board registration, and the local license may not be granted until that evidence is presented.
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Montana has no separate state license for an irrigation or sprinkler contractor. What governs the water side of a landscaping job is the plumbing chapter and the rules of whichever water system you tie into. Section 37-69-101 defines the field of plumbing as the business, trade or work having to do with the installation, removal, alteration or repair of plumbing and drainage systems or parts of them, and defines a plumbing system as all potable water supply and distribution pipes, plumbing fixtures and traps, drainage and vent pipes and building drains, with their joints, connections, devices, receptacles and appurtenances, within the property lines of any premises and up to 20 feet beyond the building foundation line. Section 37-69-102 lists the exceptions, and lawn irrigation is not among them. The listed exceptions cover an owner of a single-family residence used exclusively for the owner's personal use, farms and ranches not connected to public water supply and sewage disposal systems, water conditioner services in private dwellings, installation of a pump, waterline or pressure tank for a private water supply, apprentices working under a licensed plumber, and a few others. The working line is that trenching, heads, valves and controllers in the yard are contractor work, while a tie-in to the potable supply inside the plumbing system boundary is plumbing work. Cross-connection control reaches irrigation through the public water system, and Montana DEQ regulates systems serving 25 or more people for more than 60 days a year or having 15 or more service connections. Get the utility's rule in writing before you quote the job.
Each license carries its own penalty, and they stack across one company. On the contractor side, 37-45-302 provides that in addition to the penalties in 37-1-406, a department determination of unprofessional conduct under 37-45-301 subjects the person who committed the violation to a penalty of up to $5,000, as determined by the department, and to suspension or debarment of rights to public works contracts. Penalties collected go to the uninsured employers' fund. Because the program rule treats engaging a person to perform work for which that person is not licensed as unprofessional conduct, putting an unlicensed sub on your crew exposes your own license and your access to public bid work. On the pesticide side, 80-8-306 makes a person convicted of violating the chapter or its rules guilty of a misdemeanor, with a fine of not less than $100 and not more than $1,500. A major violation can draw a department civil penalty of not more than $2,500 for each offense, and where a major violation has significantly harmed human life, welfare or safety or affected commodities, livestock or the environment, the department may seek a civil penalty of up to $25,000 per offense by complaint in district court. The department may also seek an injunction without bond. On the nursery side, 80-7-135 sets a civil penalty of not more than $1,000 for each violation. Holding yourself out as entitled to practice landscape architecture without a license is separately unlawful under 37-66-104.
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Montana preempts the local contractor license. Section 37-45-204 states that the chapter's provisions on registering or licensing a person, firm or corporation, including the requirement of a bond with the state of Montana named as obligee and the collection of a fee, are exclusive for registered construction contractors, and that a political subdivision may not require or issue any registrations, licenses or bonds for the same or a similar purpose. Two limits follow. The section does not limit a local government's authority to levy and collect a general and nondiscriminatory license fee on all businesses, and it does not limit local authority over contractors who are not required to be licensed under the chapter. That is exactly how Billings operates. The city states that any person who conducts business in the city or is based in the city must obtain a business license on or before the date the business commences, that the requirement applies even if the business is located outside city limits or holds a license from another city, that home-based businesses need one and must comply with the zoning ordinance, and that conducting business in the city without a license can result in penalties, violation notices, citations and court action. Expect the same shape in the other large Montana cities: a business license and permits, not a second contractor license. For verification, the Department of Labor and Industry links a public license lookup at ebizws.mt.gov from both its Construction Contractor program page and its Montana Contractor page, plus a license verification request through the ebiz.mt.gov portal. Put that lookup link in your proposal and let the customer check you.
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These are common details other guides publish about Montana, but we could not verify them from the agency source. Confirm them directly before relying on them.
Yes, in pieces. The Montana Department of Labor and Industry licenses construction contractors, and that license covers hardscaping and other improvements attached to real estate. The Montana Department of Agriculture licenses a landscape service that buys and resells nursery stock and licenses commercial pesticide applicators. There is no single landscaping license.
The Department of Labor and Industry states that effective January 1, 2026 all construction contractors in Montana must be licensed, and that contractors with an active registration as of December 31, 2025 were converted to the new license. House Bill 239 of the 2025 session replaced the old registration framework with licensing.
Section 37-45-104 exempts one project of a casual, minor or inconsequential nature where the aggregate contract price for labor, materials and all other items is less than $2,500 a job. It does not apply where the work is part of a larger operation or where a job was split to get under the figure.
Very likely yes. Section 80-7-106 requires a license for each location for any firm, nursery, plant dealer or landscape service selling or distributing nursery stock in Montana, and 80-7-105 defines a landscape service as a firm that buys, sells or resells nursery stock. Turf and sod grass count as nursery stock.
The Department of Agriculture publishes a landscape service license fee of $150, and the statute sets that fee in a range of $150 to $200. A sod farmer pays $220 on the published schedule. A landscape service that also sells nursery stock pays whichever of the two fees is greater. Late renewal adds $25.
Yes. Section 80-8-203 makes it unlawful to engage in the business of applying pesticides for another without an applicator license from the Montana Department of Agriculture. The department publishes the cost as $85.00 per year plus $25.00 for each of the first two operators and $10.00 for each additional operator.
Category (3) Ornamental and Turf Pest Control. The department defines it as covering any applicator using or supervising the use of pesticides to control pests in the maintenance and production of ornamental trees, shrubs, flowers and turf. You pass the core exam plus that category at 80% or better.
The Department of Agriculture states that an aerial applicator must carry minimum liability insurance of $50,000 and all other applicators must carry $30,000. The coverage must stay in full force for the entire licensing period, physical proof is required on request, and a license holder without current insurance is noncompliant.
Not without a licensee. Section 37-66-302 bars using the designation landscape architect or landscape architecture, or advertising any title or description tending to convey that impression, unless licensed with the board. Section 37-66-105(2) protects landscape contractor, landscape designer and landscape gardener as terms an unlicensed firm may use.
There is no separate state irrigation or sprinkler contractor license. Section 37-69-101 puts potable water supply and distribution piping within the property lines and up to 20 feet beyond the building foundation line inside the plumbing system, and 37-69-102 does not exempt lawn irrigation, so the potable tie-in is plumbing work.
Section 37-45-302 provides a penalty of up to $5,000 as determined by the department, plus suspension or debarment of rights to public works contracts, in addition to the penalties in 37-1-406. The money goes to the uninsured employers' fund. Pesticide and nursery violations carry their own separate penalties.
Section 37-45-204 says the state provisions are exclusive and a political subdivision may not require registrations, licenses or bonds for the same or similar purpose. Cities may still charge a general business license fee on all businesses. Billings requires a business license from anyone conducting business in the city.
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