Do You Need an Arborist License in Arizona?

Last updated: August 25, 2026

Arizona issues no arborist license — but do not stop reading there, because two exemptions in the contractor statute decide whether you need a license at all, and one of them is narrower than it looks. A.R.S. §32-1121 exempts work under $1,000, and separately exempts “a person who functions as a gardener by performing lawn, garden, shrub and tree maintenance”. Maintenance is the operative word. And if you intend to spray, Arizona wants three separate licenses, backed by fingerprints and proof of financial security.

What Arizona Actually Requires

• No arborist license — Arizona issues none, and ISA certification is voluntary.
• A Registrar of Contractors license unless an exemption applies.
• Exemption one — value: where the aggregate contract price, including labor, materials and all other items, is less than $1,000 (A.R.S. §32-1121(A)(14)).
• ★ Exemption two — the gardener exemption: “a person who functions as a gardener by performing lawn, garden, shrub and tree maintenance” (A.R.S. §32-1121(A)(16)).
• The advertising rule if you are exempt: you must include the words “not a licensed contractor” in any public advertising (A.R.S. §32-1121(A)(14)(c)).
• ★ Three pest management licenses if you apply pesticides as a business:
• Certified Applicator — $55 application fee, evidence of lawful presence, a fingerprint background investigation, and the Core plus at least one category exam passed at 75% or higher.
• Certified Qualified Applicator — $75, plus the required experience. A QA may be registered as the Qualifying Party of a licensed business.
• Business License — $185, a copy of the tradename certificate, articles of organization or incorporation, and proof of financial security.

What It Costs

Item	Cost	Notes
State arborist license	Does not exist	Arizona issues none
Contractor license threshold	$1,000	Exempt below it; the gardener exemption is separate and covers maintenance
Certified Applicator	$55	Plus fingerprinting; Core and category exams at 75% to pass
Certified Qualified Applicator	$75	Needed for whoever acts as the business’s Qualifying Party
Pest management Business License	$185	Requires proof of financial security alongside the trade name and formation documents
Arizona LLC	$50	Articles of organization filed with the Corporation Commission; expedited processing costs more

Coming From Another State

Is there an arborist license to transfer into Arizona?

No — Arizona does not license arborists, so there is no arborist credential to move across. Your ISA Certified Arborist card is issued by the International Society of Arboriculture rather than by a state, so it travels with you and needs nothing done to it.

Where the question gets real is the contractor license discussed above — the credential that decides whether the work you plan to do falls inside or outside the gardener exemption.

Arizona has no reciprocity — it has a waiver

Say it precisely, because the distinction changes what you apply for. The Arizona Registrar of Contractors does not have direct reciprocity with any state. There is no agreement under which another state’s license converts into an Arizona one.

What the ROC offers instead is a waiver. An out-of-state applicant may request a waiver of the required trade examination and experience if the qualifying party has held a comparable license in another state within the past five years. The instrument is the Out-of-State Waiver Request Form, RC-L-200G.

Three things follow from it being a waiver rather than reciprocity:

• It is a request, not an entitlement. You are asking the Registrar to excuse two requirements, and the decision rests with them.
• The comparison is to a comparable license — so the classification you held elsewhere matters as much as the fact of holding one.
• The five-year window is measured backwards from now. A license you held six years ago does not support the request, even if you held it for a decade before that.

It waives the trade exam and the experience requirement — not the rest of the application. Bonding, the qualifying party arrangement and the other conditions covered above still apply in full.

One classification change to check before you apply

If your plan involves landscape work alongside tree work, note that Arizona has reclassified the CR-21 license: existing CR-21 Landscaping and Irrigation Systems licenses are now CR-21 Hardscaping and Irrigation Systems. If you are working from older guidance, or matching your out-of-state classification against an Arizona one for the waiver request, use the current classification list rather than the name you remember.

And remember the point made above: the gardener exemption covers maintenance, which may well not describe removals, large pruning jobs or anything structural. Getting the waiver does not change where that line falls — it only changes how much of the licensing process you have to sit through to end up on the right side of it.

The Gardener Exemption Covers Maintenance — Which May Not Be What You Do

Arizona’s tree rules hinge on two sentences in the contractor statute, and the gap between them is where most operators actually live.

The first is about money. A.R.S. §32-1121(A)(14) exempts work where the aggregate contract price, including labor, materials and all other items, is less than $1,000. That is a low ceiling for tree work. A single mature removal clears it comfortably, so the value exemption is not a business model — it is a threshold you will cross on ordinary jobs.

The second is about what kind of worker you are, and it is the one to read slowly. Subsection (A)(16) exempts “a person who functions as a gardener by performing lawn, garden, shrub and tree maintenance”. Notice what that sentence does and does not say. It exempts a gardener. It exempts maintenance. Pruning a tree to keep it healthy sits naturally inside “tree maintenance”. Felling a tree and grinding out the stump is a harder argument — that is not maintaining the tree, and the person doing it is not obviously functioning as a gardener. Arizona has not written a tree-removal exemption, and it would be a mistake to read one into the gardener clause because it happens to contain the word “tree”. If your work is mostly removals, put the question to the Registrar of Contractors directly rather than relying on an interpretation that suits you.

If you do rely on an exemption, Arizona makes you say so out loud. Under §32-1121(A)(14)(c), an unlicensed person must include the words “not a licensed contractor” in any public advertising. That is not a formality either — it is a disclosure your competitors and your customers can both see, and omitting it while trading on an exemption is its own problem.

The pesticide side of Arizona is unusually heavy, and it is where the real cost sits. The Pest Management Division does not issue one license; it issues three, and states plainly that all three are required to engage in the business of pest management where an exemption does not apply. The individual needs a Certified Applicator license — $55, evidence of lawful presence, a fingerprint background investigation, and the Core exam plus at least one category exam passed at 75% or higher. That 75% pass mark is higher than most states, which sit at 70%. Then someone must hold a Certified Qualified Applicator license at $75 and be registered as the business’s Qualifying Party — the person charged with ensuring the training, equipping and supervision of every applicator, and with making sure the business keeps proper proof of financial security on file. Finally the company itself needs a Business License at $185, filed with the tradename certificate, the formation documents and that proof of financial security.

Read together, Arizona is a light-touch state for a gardener who prunes and a demanding one for a company that sprays. The step between those two businesses is larger here than in most states, and it is worth deciding deliberately which one you are building rather than drifting across the line.

How to Get Licensed, In Order

1. Decide honestly whether your work is maintenance or removal. The gardener exemption is written around maintenance, and removals sit awkwardly inside it.
2. Assume you will cross $1,000 on ordinary jobs — the value exemption will not carry a working tree business.
3. Put your scope to the Registrar of Contractors and get their view rather than relying on your own reading.
4. If you are trading unlicensed on an exemption, put “not a licensed contractor” in your advertising — the statute requires it.
5. If you will spray, budget for all three pest management licenses, not one.
6. Sit the Core and category exams at the 75% standard and allow time for fingerprinting and the background check.
7. Nominate your Qualifying Party — they carry responsibility for supervision and for the proof of financial security.
8. Register the business entity first, because the pest management business license application asks for the articles of organization.

Staying Licensed

Whichever route you are on, the thing to watch in Arizona is scope creep. The gardener exemption and the $1,000 threshold are not permanent statuses — they describe particular jobs, so a business that drifts from pruning into removals, or from small jobs into large ones, can move out of exemption without any single decision to do so. On the pest management side, the Qualifying Party is responsible for ensuring the business maintains proper proof of financial security and that it stays submitted to the Division, so a change of insurer or a lapse is a licensing matter rather than a private one. If your Qualifying Party leaves the company, that is a licensing event too — the business license depends on having one.

Frequently Asked Questions

Does Arizona require an arborist license?

No. Arizona issues no arborist license. What governs paid tree work is contractor licensing through the Registrar of Contractors, plus pest management licensing if you apply pesticides. Two exemptions in the contractor statute matter most: work under $1,000, and the gardener exemption for maintenance.

What is the gardener exemption in Arizona?

A.R.S. 32-1121(A)(16) exempts “a person who functions as a gardener by performing lawn, garden, shrub and tree maintenance” from contractor licensing. Read the word maintenance carefully — it is doing a lot of work in that sentence, and taking a tree out is not obviously maintenance of it. Confirm your own scope with the Registrar of Contractors rather than assuming the exemption stretches to cover removals.

Do I need a contractor license for tree work in Arizona?

It depends on the value and the nature of the work. A separate exemption applies where the aggregate contract price, including labor, materials and all other items, is less than $1,000. If you rely on being exempt, A.R.S. 32-1121(A)(14)(c) requires you to include the words “not a licensed contractor” in any public advertising.

What licenses do I need to spray trees in Arizona?

Three, and the Pest Management Division is explicit that all three are required to engage in the business of pest management where it is not exempt. A Certified Applicator license for the individual, with a $55 application fee, fingerprint background check and Core plus category exams passed at 75% or higher; a Certified Qualified Applicator at $75 for whoever will be the Qualifying Party; and a Business License at $185, which requires proof of financial security.

Tree work sits alongside our full guide to starting a landscaping business in Arizona, and the wider guide to starting a business in Arizona. Or see how every state handles tree work in our arborist license requirements by state guide.

Does Arizona have contractor license reciprocity for tree work?

No. The Arizona Registrar of Contractors does not have direct reciprocity with any state. It does allow out-of-state applicants to request a waiver of the required trade examination and experience, using the Out-of-State Waiver Request Form RC-L-200G, where the qualifying party has held a comparable license in another state within the past five years. The waiver covers the exam and experience only; bonding and the rest of the application still apply.

Sources

Source	What It Covers
A.R.S. §32-1121 — exemptions from contractor licensing	The under-$1,000 exemption, the gardener exemption for lawn, garden, shrub and tree maintenance, and the requirement to advertise as “not a licensed contractor”
Arizona Department of Agriculture — Pest Management Division licensing information	The three-license structure, the $55 Certified Applicator, $75 Qualified Applicator and $185 Business License fees, the 75% exam standard, fingerprint background checks, and the proof of financial security requirement
Arizona Registrar of Contractors — license classifications	The contractor classifications the Registrar issues
Arizona Corporation Commission — LLC fee schedule	The $50 articles of organization filing fee
Arizona Registrar of Contractors — Out of State Applicants	That Arizona has no direct reciprocity, and the waiver of trade exam and experience for a comparable license held within the past five years
Arizona Registrar of Contractors — Out-of-State Waiver Request Form RC-L-200G	The form used to request the waiver
Arizona Registrar of Contractors — License Classifications	Current classifications, including the reclassification of CR-21 from Landscaping to Hardscaping and Irrigation Systems