Maryland Landscaping Contractor License Requirements (2026)

Maryland licenses landscape contractors performing residential work through the Maryland Home Improvement Commission (MHIC) under Md. Code Business Regulation §8-101 et seq. Any home improvement work over $1,000 (including landscape installation, hardscape, retaining walls, drainage, and irrigation on residential property) requires a Maryland Home Improvement Contractor (MHIC) license. Any commercial application of pesticides additionally requires a Certified Pesticide Applicator license from the Maryland Department of Agriculture (MDA) Pesticide Regulation Section under Md. Code Agriculture §5-201. Maryland is unique in also requiring a Certified Professional Fertilizer Applicator credential from MDA for any commercial application of fertilizer to non-agricultural turf, under the Lawn Fertilizer Law.

Regulatory Oversight

Maryland Department of Labor — Division of Occupational and Professional Licensing (MD DOL) administers and enforces this credential under the authority of Maryland Code, Business Regulation and Business Occupations Articles. The Maryland Department of Labor houses the occupational boards that license home improvement contractors, master electricians, plumbers, and HVACR contractors statewide, adopts technical codes by reference, and conducts disciplinary proceedings.

Official portal: https://www.dllr.state.md.us/license/
Address: 1100 North Eutaw Street, Baltimore, MD 21201
Phone: (410) 230-6231

Who May Apply

An applicant qualifies only after meeting the age floor of 18 and producing a valid Social Security Number. No Maryland residency requirement.

Good moral character

MHIC reviews fitness; prior felonies and unpaid judgments are grounds for denial.

Background investigation

Required for MHIC license; criminal background fingerprinting through CJIS.

Required Experience and Education

Plan to substantiate Two years of trade or business experience (or equivalent education) for the MHIC license. MDA Certified Pesticide Applicator requires passing the Core exam plus the appropriate category exam. with hard records. Payroll, tax, project logs, and supervisor verification are what the board relies on when it reviews the claim.

Accepted proof of experience or eligibility

MHIC application with experience affidavit
MDA Certified Pesticide Applicator + Certified Professional Fertilizer Applicator applications

Education substitution

Accredited horticulture or landscape coursework substitutes for MHIC experience requirement.

Examination Requirements

The licensing examination is delivered by PSI Services LLC (MHIC); Maryland Department of Agriculture (pesticide and fertilizer). All of the following parts must be cleared prior to issuance:

MHIC examination — Maryland home improvement law and business management — 50 questions, 90 minutes, passing score 70%
MDA Core (General Standards) pesticide exam — 50 questions, 90 minutes, passing score 70%
MDA Category 3A (Ornamental) / 3B (Turf) — 50 questions, 90 minutes, passing score 70%

Examination fee: $63 PSI fee for the MHIC exam + $25 per MDA category exam.

Retake policy: Failed MHIC exam may be retaken every 30 days; MDA exams retakable after 14 days.

Insurance and Financial Requirements

The cited state source set does not require a contractor license surety bond for this credential. Contractors should still confirm project-specific bond, permit-bond, or public-works bond requirements before bidding.

General liability

MHIC requires minimum $50,000 commercial general liability. Most clients require $1,000,000 / $2,000,000.

Workers' compensation

Mandatory under Md. Code Labor and Employment §9-402 for any employer with one or more employees.

Additional financial requirements

MHIC requires the licensee to contribute to the Home Improvement Guaranty Fund.

Licensing Fees

Fee	Amount
Application (non-refundable)	$370
Examination	$113
Initial license	$370
Renewal (every 2 years)	$370

Keeping the License Current

Renewal of the Maryland Home Improvement Contractor (MHIC) + MDA Certified Pesticide Applicator + MDA Certified Fertilizer Applicator comes due every 2 years. As cited, the renewal fee stands at $370. MHIC license renews every two years. MDA certifications follow separate cycles.

Continuing education: MHIC: no CE. MDA Pesticide Applicator: 8 CEU hours per three-year cycle.

Downloadable Asset

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

Download the PDF roadmap →

Reciprocity and License Transfer

The NASCLA Accredited Examination is not accepted by Maryland for this classification.

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

MHIC license is not reciprocal with any other state. MDA pesticide applicator credentials may be granted reciprocally to applicants from DC, Virginia, Pennsylvania, or Delaware.

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

Application Process, Step by Step

Register Maryland business entity and EIN. File with the Maryland Department of Assessments and Taxation.
Document two years of experience or equivalent education. MHIC experience affidavit signed by past employer.
Secure $50,000+ commercial general liability insurance. Required for MHIC license.
Pass the PSI MHIC exam at 70%. Maryland home improvement law and business management.
Submit MHIC application with $370 fee + Guaranty Fund assessment. Includes background check.
Pass the MDA Core exam at 70%. Required baseline for pesticide certification.
Pass MDA Category 3A/3B and obtain Certified Pesticide Applicator + Certified Professional Fertilizer Applicator. Both required for any commercial pesticide and fertilizer application on landscape turf.
Comply with Maryland Stormwater + Chesapeake Bay rules. MDE enforces erosion control and nutrient management.

Recommended References

What follows are the regulator-cited and commonly used preparation references for this trade. They appear here for convenience only; CLR takes no compensation for them.

Maryland Home Improvement Law Reference Manual — PSI / DLLR. Required reference for the MHIC exam.
Maryland Pesticide Applicator Core Manual — University of Maryland Extension. Required reference for the MDA Core exam.
Maryland Lawn Fertilizer Law Compliance Guide — MDA / UMD Extension. Required for the Certified Professional Fertilizer Applicator credential.

Frequent Application Errors

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 Maryland Landscaping application.

Operating without MHIC

Md. Code Business Regulation §8-601 makes unlicensed home improvement work a misdemeanor with fines up to $5,000 per violation; contracts are unenforceable.

Skipping the Certified Fertilizer Applicator credential

Md. Code Agriculture §8-803.1 makes unlicensed commercial fertilizer application a separate offense.

Spraying without MDA certification

Civil penalties up to $1,000 per violation under Md. Code Agriculture §5-208.

Fertilizer blackout dates

Lawn fertilizer is prohibited Nov 16 – Mar 1 and restricted on impervious surfaces year-round; MDA enforces with fines.

Stormwater compliance failures

MDE requires erosion control plans for any project disturbing 5,000 sq ft or more.

Document Checklist

The items below are the ones worth confirming before the application is filed with MD DOL:

☐ Maryland business entity registration
☐ Two years of experience or equivalent education
☐ $50,000+ commercial general liability insurance
☐ PSI MHIC exam pass at 70%+
☐ MHIC license + Guaranty Fund contribution
☐ MDA Core + Category 3A/3B exam pass
☐ MDA Certified Pesticide Applicator + Certified Professional Fertilizer Applicator
☐ Workers compensation coverage

Other Maryland Trade Licenses

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

Questions Applicants Ask

Do I need an MHIC license for landscape work?

Yes, for any home improvement work over $1,000 on residential property, including landscape installation, hardscape, retaining walls, drainage, and irrigation. Pure mowing and incidental maintenance is exempt.

What is the Certified Professional Fertilizer Applicator?

A Maryland Department of Agriculture credential required for any commercial application of fertilizer to non-agricultural turf, under the Lawn Fertilizer Law. It is separate from the Pesticide Applicator certification.

Are there special Chesapeake Bay rules?

Yes. MDE enforces nutrient management plans, fertilizer blackout dates (Nov 16 – Mar 1), and phosphorus restrictions on lawn fertilizer. Erosion control plans are required for any project disturbing 5,000 sq ft or more.

Is irrigation regulated separately?

No state irrigation contractor license, but Maryland plumbing code requires a tested reduced-pressure backflow assembly on every irrigation tie-in to potable water.

How often does MHIC renew?

Every two years. MDA Certified Pesticide Applicator follows a separate three-year cycle.

Primary Sources

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

Verified 2026-04-20 · Next scheduled review 2026-07-19