New Hampshire Landscaping Contractor License Requirements (2026)

New Hampshire does not issue a state-level landscape contractor trade license. The mandatory state credential is a Commercial Pesticide Applicator certification issued by the New Hampshire Department of Agriculture, Markets and Food (NHDAMF) Pesticide Control Division under RSA 430:28. Any landscape work within 250 feet of any public water (lakes, ponds 10+ acres, fourth-order rivers) requires compliance with the Shoreland Water Quality Protection Act (RSA 483-B) administered by the NH Department of Environmental Services (NHDES). Wetlands work additionally requires an NHDES Wetlands Bureau permit under RSA 482-A.

Governing Authority

New Hampshire Office of Professional Licensure and Certification (OPLC) — trade boards (OPLC) administers and enforces this credential under the authority of New Hampshire RSA 319-C (Electricians), RSA 329-A (Plumbers), RSA 153 (Mechanical/Gas Fitters); administrative rules Elec 100–600, Plu 100–600, Saf-C 6000 series. New Hampshire does not license general contractors at the state level. Trade boards under the OPLC umbrella license individual electricians, plumbers, and gas fitters statewide. Mechanical/HVAC work intersects the Gas Fitters Board (for fuel gas piping) and local mechanical permitting; pure HVAC ductwork is not separately state-licensed. New Hampshire is unusual in the Northeast for combining strict individual trade licensing with no general contractor license at all — accountability for general construction sits at the municipal building department and through civil contract law. Home improvement contractors are not registered or bonded by the state; consumer protection runs through RSA 358-A (Consumer Protection Act) enforced by the Attorney General. Always confirm current rules with OPLC and the local building official before bidding work. Overview of the New Hampshire licensing landscape: New Hampshire takes a deliberately light-touch approach to construction trades regulation compared to its neighbors. There is no statewide general contractor license, no statewide home improvement contractor registration program (unlike Massachusetts HIC or Rhode Island contractor registration), and no statewide building permit. Instead, the state relies on three pillars. First, the building code: New Hampshire adopted the State Building Code under RSA 155-A, which incorporates the International Building Code, International Residential Code, International Mechanical Code, International Plumbing Code, International Energy Conservation Code, and the National Electrical Code by reference. The State Fire Marshal enforces the State Building Code in jurisdictions that have not adopted local enforcement, while most populated municipalities run their own building departments and issue their own permits. Second, individual trade licensing: the Electricians Board, the Plumbers Board, and the Mechanical Licensing Board (Gas Fitters) license journeyman and master tradespeople under their respective statutes. These licenses are personal to the individual and follow the worker between jobs and between employers. Third, consumer protection law: home improvement disputes are handled through RSA 358-A and standard contract law, not through a state license bond pool. What this means in practice for contractors: a self-employed builder in New Hampshire can legally bid and build a single-family home without any state-issued license, provided every electrical worker on site holds a current Electricians Board license, every plumber holds a current Plumbers Board license, every gas fitter holds a current Gas Fitters Board license, the project clears the local building department permit, and the work passes all required inspections. The contractor may still need a federal EIN, state business registration with the Secretary of State, business profits and enterprise tax accounts with the New Hampshire Department of Revenue Administration, and (if hiring) workers compensation coverage under RSA 281-A. The Department of Labor enforces workers compensation aggressively, and uninsured employers face stop-work orders. Municipal nuances matter. Manchester, Nashua, Concord, Portsmouth, Dover, and Keene each operate full building departments with their own permit application packets, contractor sign-in requirements, and inspection schedules. Some towns require the contractor to be listed on the permit; some require proof of insurance before issuing the permit; a few smaller towns have no building inspector at all and rely on the State Fire Marshal. Always call the building department before assuming a project does not need a permit. Electrical and plumbing permits are typically pulled by the licensed tradesperson, not the general contractor, and the inspection is performed by the municipal inspector or by the State Electrical or State Plumbing inspector in unincorporated areas. Reciprocity is meaningful here. The Electricians Board holds reciprocal agreements with several New England states for master and journeyman credentials, as does the Plumbers Board. The Mechanical Licensing Board recognizes equivalent gas fitter credentials from neighboring states on a case-by-case basis. Reciprocal applicants still pay New Hampshire fees, submit a New Hampshire application, and in most cases sit for the New Hampshire-specific portion or the full New Hampshire exam. Renewal cycles vary by board (electricians and plumbers renew on a three-year cycle; gas fitters renew on a two-year cycle), and continuing education requirements are set by each board. Because New Hampshire publishes most rules and forms only on the OPLC website and the General Court statute pages, contractors should bookmark oplc.nh.gov and gencourt.state.nh.us and check both before paying any fee or scheduling an exam. Rates and fee amounts in this guide should be confirmed directly with the relevant board before submitting payment.

Official portal: https://www.oplc.nh.gov/
Address: 7 Eagle Square, Concord, NH 03301
Phone: (603) 271-2152

Eligibility Requirements

At a minimum the applicant has to be 18 years old and supply a valid Social Security Number or Individual Taxpayer Identification Number (ITIN). No residency requirement.

Good moral character

NHDAMF reviews prior pesticide enforcement history.

Background investigation

Required disclosure on the NHDAMF application.

Experience & Education Matrix

There is no published year count for this credential in the cited sources. What actually controls eligibility is No experience requirement for landscape installation. NHDAMF Commercial Applicator requires passing the Core (General Standards) exam plus the appropriate category exam (Category 3A — Ornamental and Turf)..

Accepted proof of experience or eligibility

NHDAMF Commercial Pesticide Applicator application + exam pass slips

Education substitution

University of New Hampshire Cooperative Extension training counts toward NHDAMF continuing education.

Examination Structure

The licensing examination is delivered by New Hampshire Department of Agriculture, Markets and Food. All of the following parts must be cleared prior to issuance:

NHDAMF Core (General Standards) exam — 100 questions, 180 minutes, passing score 70%
NHDAMF Category 3A — Ornamental and Turf — 50 questions, 90 minutes, passing score 70%

Examination fee: $110 Commercial Applicator certification + $30 per category exam.

Retake policy: Failed exams may be retaken after 14 days; new $30 fee.

Insurance & Financial Security

This credential carries no state-level surety bond requirement under the cited sources. Individual jobs may still trigger a permit or public-works bond, which should be verified before bidding.

General liability

NHDAMF requires Commercial Applicators to maintain $300,000 combined-single-limit liability.

Workers' compensation

Mandatory under RSA 281-A for any employer with one or more employees.

Additional financial requirements

Not required.

Application and License Fees

Fee	Amount
Application (non-refundable)	$110
Examination	$60
Initial license	$110
Renewal (every year)	$110

Maintenance & Renewal

Expect to renew the New Hampshire Landscaping — No State Trade License (NHDAMF Commercial Pesticide Applicator + NHDES Wetlands) every year. Renewal currently costs $110. NHDAMF Commercial Pesticide Applicator certifications renew annually on April 30.

Continuing education: 16 CEU hours per five-year cycle (5 Core + 11 category), OR re-examination.

Downloadable Asset

2026 New Hampshire Landscaping License Roadmap (PDF) — a printable step-by-step checklist for the application process.

Download the PDF roadmap →

Reciprocity and Endorsement

New Hampshire does not accept the NASCLA Accredited Examination for this classification.

Reciprocal State	Accepted Exam	Conditions
No formal bilateral reciprocity agreements identified.

NHDAMF grants pesticide applicator reciprocity on a case-by-case basis to applicants from Maine, Vermont, Massachusetts, or Connecticut.

Weighing more than one jurisdiction? The national hub compares Landscaping license requirements in every state — exam, bond, fee, and experience thresholds side by side.

Step-by-Step Application Roadmap

Register New Hampshire business entity and EIN. File with the NH Secretary of State.
Apply for local municipal business licenses. Towns vary; many require local business registration.
Secure $300,000 CSL liability insurance. Required by NHDAMF.
Pass the NHDAMF Core exam at 70%. Required baseline.
Pass NHDAMF Category 3A — Ornamental and Turf. Landscape pesticide category.
Apply for NHDAMF Commercial Pesticide Applicator certification. Submit application, pass slips, and $110 fee.
Comply with Shoreland Water Quality Protection Act + NHDES Wetlands. Required for any work near protected waters or wetlands.
Enroll workers compensation. Required for any W-2 employee.

Study and Reference Materials

These are the preparation and reference materials tied to this credential — cited by the regulator or widely used by applicants. CLR earns nothing from listing them.

New Hampshire Pesticide Applicator Core Manual — University of New Hampshire Cooperative Extension. Required reference for the NHDAMF Core exam.
Ornamental and Turf Pest Management — UNH Extension. Category 3A study guide.
New Hampshire Shoreland Protection Handbook — NHDES. Required for landscape work in shoreland zones.

Common Filing Mistakes

Drawn from the board instructions and sources cited on this page, the pitfalls below are the ones most likely to slow down or sink a New Hampshire Landscaping application.

Spraying without NHDAMF certification

Civil penalties up to $5,000 per violation under RSA 430:42.

Shoreland violations

RSA 483-B violations carry fines up to $5,000 per day plus restoration costs.

Wetlands violations

NHDES enforces wetlands rules aggressively in lakes region; unpermitted work voids title insurance and triggers restoration orders.

Phosphorus near surface waters

RSA 431:13 prohibits phosphorus fertilizer within 25 ft of any surface water; violations are an automatic NHDAMF enforcement target.

Backflow violations on irrigation

NH plumbing code requires annual backflow testing on every potable irrigation tie-in.

Pre-Submission Checklist

These are the pieces to lock down before filing with OPLC:

☐ New Hampshire business entity registration
☐ Local municipal business licenses
☐ $300,000 CSL liability insurance
☐ NHDAMF Core exam pass certificate
☐ NHDAMF Category 3A exam pass
☐ NHDAMF Commercial Pesticide Applicator certification
☐ Shoreland / NHDES Wetlands compliance
☐ Workers compensation coverage

Other New Hampshire Trade Licenses

CLR covers other New Hampshire trades as well — the published guides below may be more relevant:

Frequently Asked Questions

Does New Hampshire license landscape contractors?

No state landscape trade license. The NHDAMF pesticide certification is mandatory for any commercial spraying.

What is the Shoreland Water Quality Protection Act?

RSA 483-B regulates land use within 250 ft of public waters. Landscape work in shoreland zones requires compliance with limits on impervious surface, vegetation removal, and fertilizer use.

Do I need an NHDES Wetlands permit?

Yes, for any work in wetlands or surface waters. Even minor fill, grading, or vegetation removal requires a permit under RSA 482-A.

Are there fertilizer restrictions?

Yes. RSA 431:13 regulates fertilizer use in shoreland zones, restricting phosphorus and prohibiting application within 25 feet of surface waters.

How often does the NHDAMF certification renew?

Annually on April 30. Recertification requires 16 CEU hours per five-year cycle (5 Core + 11 category), OR re-examination.

Primary Sources

Regulatory requirements on this page are drawn from the official board, statute, and exam-provider materials listed below.

Verified 2026-04-29 · Next scheduled review 2026-07-28