Do You Need an Arborist License in Michigan?

Last updated: August 24, 2026

Michigan issues no arborist license, and no state landscape trade license either. For cutting, pruning and removal, there is simply no state credential to hold. What changes the moment you start treating trees is pesticide regulation — and Michigan splits that into two separate credentials: the person is certified and the company is licensed. Both are needed to take money for the work, they run on a three-year clock that ends on a fixed date, and four neighboring states carry reciprocity into them.

What Michigan Actually Requires

• No arborist license and no state landscape trade license — Michigan issues neither. ISA certification is voluntary.
• ★ A commercial applicator certification for the individual from MDARD, if you apply pesticides.
• ★ A pesticide application business license for the company. Commercial and registered applicators who are hired to apply pesticides must obtain and follow business licensing requirements to legally provide pesticide application services.
• The commercial core exam, plus the category covering ornamental plants and trees — check MDARD’s commercial certification categories list for the current designation.
• Know the registered applicator limit: registered applicators may apply general-use pesticides for a commercial purpose under the supervision of a certified applicator, and cannot apply restricted-use pesticides.
• A three-year credential: applicator credentials are valid for three years and expire on 31 December of the third year.
• Reciprocity if you are coming from Indiana, Minnesota, Ohio or Wisconsin — but you must be a resident of the originating state of the credential.

What It Costs

Item	Cost	Notes
State arborist license	Does not exist	Michigan issues no arborist or landscape trade license
Commercial application fee	$75	Submitted with the certification application to MDARD
Pesticide application business license	See MDARD schedule	Separate from the individual credential and required to be hired for the work
Credential term	3 years	Expires 31 December of the third year — a fixed date, not an anniversary
Recertification	Exams or seminar credits	Renew by taking certification exams or earning approved recertification seminar credits
Michigan LLC	$50	Articles of organization — among the cheapest LLC filings anywhere

Two Credentials, Not One — the Person Is Certified and the Company Is Licensed

Michigan draws a clean line that a lot of tree operators only discover after they have quoted the work: cutting is unregulated by the state, and treating is regulated twice.

There is no arborist license here and no landscape trade license. If your business prunes, fells, chips and grinds, the state asks nothing of you as a credential — the obligations that remain are the ordinary ones any business has, plus whatever a given municipality requires. ISA certification is worth having commercially, but Michigan gives it no legal weight.

The moment a pesticide is involved, two separate things must be true. The individual must hold a commercial applicator certification, and the company must hold a pesticide application business license. MDARD states it plainly: commercial and registered applicators who are hired to apply pesticides must obtain and follow business licensing requirements to legally provide pesticide application services. A certified person working for an unlicensed company does not solve the problem, and a licensed company sending out an uncertified person does not either. This trips up small operators who assume passing the exam is the whole job.

There is a middle tier worth knowing about if you are hiring. A registered applicator credential may suit someone who applies general-use pesticides for a commercial purpose under the supervision of a certified applicator. The hard limit is that registered applicators cannot apply restricted-use pesticides. For a crew structure, that means one certified applicator can supervise registered staff on general-use work, but anything restricted comes back to the certified person. MDARD also allows applicators in training to use pesticides for two weeks under direct supervision where the employer has an approved training program and files the required notification — a genuinely useful on-ramp for a new hire, but a narrow one.

The renewal clock is the detail most likely to catch you out. Applicator credentials are valid for three years and expire on 31 December of the third year. That is a fixed calendar date, not three years from the day you were certified — so a credential awarded in November is very nearly three years short of a full three years. Diary the December date, not the anniversary. Renewal is by taking certification exams again or earning approved recertification seminar credits, so the cheaper route is to accumulate seminar credits across the cycle rather than resit.

If you are moving into Michigan, check the reciprocity list before you pay for exams. MDARD holds reciprocal certification agreements with Indiana, Minnesota, Ohio and Wisconsin. The condition is residence: to receive reciprocity in Michigan an applicator must be a resident in the originating state of the credential, and submits a copy of that credential with the application. Four states in, everyone else out — so a certified applicator relocating from Illinois or Pennsylvania is starting from the exam.

How to Get Licensed, In Order

1. Decide whether you will apply pesticides at all. Pure cutting and removal needs no state credential in Michigan.
2. If you are coming from Indiana, Minnesota, Ohio or Wisconsin, check reciprocity first — you must be a resident of that state to use it.
3. Pass the commercial core exam, plus the category covering ornamental plants and trees.
4. Submit the certification application with the $75 commercial application fee.
5. Get the pesticide application business license for the company — the individual credential alone does not let you be hired for the work.
6. Consider registered applicator status for crew doing general-use work under supervision, remembering they cannot touch restricted-use products.
7. Diary 31 December of the third year, and collect recertification seminar credits across the cycle rather than resitting exams.
8. Register the business entity — at $50 the Michigan LLC is one of the cheapest filings in the country.

Staying Licensed

Michigan applicator credentials are valid three years and expire on 31 December of the third year, so set the reminder against that fixed date rather than the day you were certified. Renew either by taking the certification exams again or by earning approved recertification seminar credits — credits accumulated across the three years are usually the cheaper and less disruptive route. The pesticide application business license is a separate credential on its own renewal track, and both have to be current for the company to be legally hired to apply pesticides, so a lapse on either side stops the work. If you use registered applicators on your crew, remember their supervision requirement and the bar on restricted-use products does not relax with experience.

Frequently Asked Questions

Does Michigan require an arborist license?

No. Michigan issues no arborist license and has no state landscape trade license either. Certification through the International Society of Arboriculture is voluntary. The state requirement that reaches tree work is pesticide regulation through the Department of Agriculture and Rural Development.

What do I need to spray trees for hire in Michigan?

Two credentials, not one. The individual needs a commercial applicator certification from MDARD, and the company needs a pesticide application business license — commercial and registered applicators who are hired to apply pesticides must obtain and follow business licensing requirements to legally provide pesticide application services.

How long does a Michigan applicator credential last?

Three years. Applicator credentials are valid for three years after they are awarded and expire on December 31 of the third year, so the expiry is a fixed calendar date rather than an anniversary. The commercial application fee is $75, and certification starts with passing the commercial core exam plus the relevant category.

Can I use an out-of-state pesticide certification in Michigan?

In four cases. MDARD has reciprocal certification agreements with Indiana, Minnesota, Ohio and Wisconsin. To receive reciprocity in Michigan an applicator must be a resident of the originating state of the credential, and must submit a copy of that credential with the certification application.

Tree work sits alongside our full guide to starting a landscaping business in Michigan, and the wider guide to starting a business in Michigan.

Sources

Source	What It Covers
MDARD — pesticide applicator certification	That applicators hired to apply pesticides must also meet business licensing requirements, the three-year credential expiring 31 December of the third year, the $75 commercial application fee, the commercial core exam, the registered applicator limits, the two-week training allowance, and reciprocity with Indiana, Minnesota, Ohio and Wisconsin
MDARD — pesticide licensing and certification	The pesticide applicator business license and applicator certification programs
Michigan LARA — Corporations, Securities & Commercial Licensing	Articles of organization filing for a Michigan LLC