Arborist Certification

The Arborist Certification is a free intermediate-level, 20-minute skill test from Science of Apps. It tests the knowledge of a professional arborist — tree biology and identification, soil, planting and pruning, diagnosis, tree risk and tree protection, and safe work practices aloft and on the ground — written to the ISA Certified Arborist exam domains, the ANSI A300 tree care standards and the ANSI Z133 arboricultural safety standard for 2026. Climbing, rigging and chainsaw skills are assessed in practical training. Score 70% or more on its 20 questions to earn a verifiable Arborist Proficiency certificate (SOA-A2). Every question is based on published standards and research — including ISA Certified Arborist credential and exam domains (International Society of Arboriculture), ANSI Z133 Safety Requirements for Arboricultural Operations (Tree Care Industry Association), ANSI A300 Tree Care Standards (Tree Care Industry Association) — and each answer is explained with its source.

Science of Apps offers a free Arborist Certification, updated for 2026 and 2027. It measures tree biology and identification, soil, planting and pruning, diagnosis, risk and tree protection and safe work practices and gives instant results with a shareable certificate.

Read the four skill areas on this page, then take the 20-minute test online — no fee, course or sign-up. You see every answer explained when you finish. Score 70% or more and you get a Arborist Proficiency certificate straight away, on screen, as a PDF and by email, with a credential ID anyone can verify.

Yes. The questions are original scenarios written by Science of Apps, and each one is based on a public source you can read: ISA Certified Arborist credential and exam domains (International Society of Arboriculture); ANSI Z133 Safety Requirements for Arboricultural Operations (Tree Care Industry Association); ANSI A300 Tree Care Standards (Tree Care Industry Association); New Tree Planting (Trees Are Good) (International Society of Arboriculture); Pruning Mature Trees (Trees Are Good) (International Society of Arboriculture); Proper Mulching Techniques (Trees Are Good) (International Society of Arboriculture). The source is shown under each question and linked in the answer review. Science of Apps doesn't copy questions from other tests.

Four skill areas with five questions each, drawn from a bank of 10 per area so a retake brings new questions: Tree Biology and Identification (Tree structure, Growth and defence and Identification); Soil, Planting and Pruning (Soil and nutrition, Planting and mulching and Pruning practice); Diagnosis, Risk and Tree Protection (Diagnosis, Tree risk assessment and Construction protection); Safe Work Practices (PPE and chainsaws, Climbing and rigging and Electrical hazards). Every question is an original scenario written to the 2026–2027 standard, with the published source named under it.

Arborist or tree surgeon, Tree climber, Urban forester or tree officer, Utility line-clearance arborist and Grounds and landscape manager. It suits anyone who wants a quick, verifiable way to show Arborist knowledge in 2026 and 2027, from students and career switchers to experienced professionals.

Meet the eligibility rule — usually three or more years of full-time practical tree care experience, or a relevant degree plus less experience — then pass the ISA Certified Arborist exam, which covers tree biology, soil, pruning, diagnosis, risk, urban forestry and safe work. The credential is kept current with continuing education units.

ANSI A300 sets tree care practice — pruning, soil management, planting, support systems, risk assessment and more. ANSI Z133 sets safety requirements for arboricultural work, such as personal protective equipment, electrical hazards, climbing and chainsaw use.

Yes. The test is online, in English and free everywhere — people take it from India, the US, the UK, Europe, Africa, Latin America and Asia-Pacific. Your certificate is dated with your own local date and can be verified from anywhere at scienceofapps.com/certification/verify/.

20 questions — 5 from each of 4 skill areas — with a 20-minute limit. You need 70% (14 of 20) to pass and 90% for distinction.

We rate it Intermediate: assumes hands-on experience in the role. It has 20 scenario questions — 5 from each of 4 skill areas — and a 20-minute limit. You need 70% (14 of 20) to pass and 90% for distinction.

Nothing. There is no fee to take a test, to receive the certificate, to have it emailed or to verify it, and no sign-up.

On our server, not in your browser. The answers never reach the page until you submit, so a certificate can only be earned by passing. Each certificate gets a unique credential ID stored by Science of Apps.

You see your score for each area and every question with the correct answer and why, with the published source behind it. You can retake after 30 minutes, and the retake draws questions you haven't seen yet.

No. Every certificate is dated, so it always shows when you passed. Retake a test any time for a newer date or a higher score.

Yes. After you pass, Add to LinkedIn opens the Licenses & certifications form with the certificate name, Science of Apps as the issuer, the issue date, your credential ID and the verification link filled in. You can also download it as a PDF or PNG, and it's emailed to you as a PDF.

Every certificate has a credential ID and a QR code. Scanning it, or entering the ID at scienceofapps.com/certification/verify/, shows the holder's name, the certification, the score and the issue date from our records.

No. They are Science of Apps' own assessments of applied skill. They aren't issued by a university or standards body, and they work best alongside a portfolio that shows the skills in real work.