Maryland Low Voltage Contractor License Requirements (2026)

Maryland regulates low-voltage and alarm work through two state agencies. The Maryland State Board of Master Electricians within the Department of Labor (formerly DLLR) issues the statewide Master Electrician license under Md. Business Occupations and Professions Article §6-301 et seq., which is required for any electrical contracting business including low-voltage installation tied to building systems. The Maryland Office of the State Fire Marshal Alarm Systems Licensing Bureau additionally licenses every alarm business statewide under Md. Public Safety Article §6-101 et seq. through the Alarm Contractor (Burglar) and Alarm Contractor (Fire Alarm) classifications, with mandatory designated qualifying agent and continuing education. Both credentials are required for full-service low-voltage contractors.

Regulatory Body Profile

Authority over this credential rests with Maryland Department of Labor — Division of Occupational and Professional Licensing (MD DOL), which issues and polices it under 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

The Eligibility Audit

Eligibility begins with two baseline checks: the applicant must be 18 or older and must provide a valid Social Security Number. No Maryland residency requirement.

Good moral character

State Board of Master Electricians and OSFM both conduct fitness reviews. Felony convictions are reviewed individually.

Background investigation

Criminal history disclosure required. OSFM Alarm Contractor license requires fingerprint-based Maryland State Police and FBI background screening for the qualifying agent and every alarm employee.

Experience and Education Standards

A minimum of seven years of qualifying electrical experience for the Maryland Master Electrician license, or four years as a Maryland Journeyman Electrician must be documented and verified. Unless the board publishes a different lookback period, applicants should keep payroll, tax, project, or supervisor records that support the claimed experience.

Accepted proof of experience or eligibility

State Board of Master Electricians Experience Verification Form
W-2 statements, pay stubs, or 1099 records
NICET Fire Alarm Systems Level II / III certificate
Approved Maryland electrical apprenticeship completion certificate

Education substitution

Approved electrical apprenticeships and accredited two-year electronics programs substitute for portions of the experience requirement on a sliding scale.

The Exam Syllabus

Testing is handled by PSI Services LLC under contract to the State Board of Master Electricians.. The applicant has to pass each part listed here before the credential is granted:

PSI Maryland Master Electrician Examination — NEC, Maryland electrical code, business and law — 100 questions, 240 minutes, passing score 70%

Examination fee: $63 examination fee paid to PSI on registration.

Retake policy: Failed examinations may be re-taken after a 30-day waiting period by paying a new $63 fee. Each application remains active for one year.

Bonding, Insurance & Financial Security

No license surety bond is mandated statewide here under the cited sources, though project-specific or public-works bonding obligations can still attach to a given job.

General liability

State Board of Master Electricians does not impose a state minimum general liability. OSFM Alarm Contractor license requires $300,000 / $300,000 / $50,000 minimum.

Workers' compensation

Workers' compensation is mandatory for any Maryland employer under Md. Labor and Employment Article §9.

Additional financial requirements

No financial statement required at the state level.

Schedule of Fees

Fee	Amount
Application (non-refundable)	$30
Examination	$63
Initial license	$33
Renewal (every 2 years)	$33

Renewal and Continuing Obligations

The Maryland State Board of Master Electricians License and State Fire Marshal Alarm Systems License runs on a 2 years renewal cycle. The current renewal fee is $33. Maryland Master Electrician and OSFM Alarm Contractor licenses both renew every two years.

Continuing education: OSFM Alarm Contractor renewal requires twelve hours of approved continuing education each two-year cycle for the qualifying agent.

Downloadable Asset

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

Download the PDF roadmap →

Out-of-State Reciprocity

For this classification, Maryland does not recognize the NASCLA Accredited Examination.

Reciprocal State	Accepted Exam	Conditions
Virginia	Trade exam waived	State Board–Virginia DPOR bilateral reciprocity for active Master Electricians.
West Virginia	Trade exam waived	Bilateral reciprocity for active Master Electricians.
Delaware	Trade exam waived	Bilateral reciprocity for active Master Electricians.

Maryland maintains bilateral Master Electrician reciprocity with Virginia, West Virginia, and Delaware. OSFM Alarm Contractor license is not reciprocal.

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

The Application Roadmap

Document seven years of qualifying electrical experience. Compile experience verification covering seven years (or four years as a Maryland Journeyman) of supervised electrical and low-voltage work.
Submit the State Board of Master Electricians application. File the application with the $30 fee and experience documentation.
Pass the PSI Maryland Master Electrician examination at 70%. Score 70% or better on the 100-question exam covering NEC and Maryland electrical code.
Receive the Master Electrician license. State Board issues the credential within 30 – 60 days of passing the exam.
Apply for the OSFM Alarm Contractor license. File the OSFM Alarm Systems Licensing Bureau application with $130 fee, fingerprints, $300,000 / $300,000 / $50,000 liability, and qualifying agent designation.
Register every alarm employee with OSFM. Each technician must hold an OSFM Alarm Systems Employee identification card after fingerprint clearance.
File workers compensation. Submit Maryland workers compensation certificate for any business with employees.
Renew on the State Board biennial cycle. Master Electrician license renews every two years on the licensee's anniversary date. OSFM Alarm Contractor license also renews biennially.

Recommended Study Materials

The list below collects the board's cited references and the materials applicants typically study from. CLR is not paid to recommend any of them.

Md. Business Occupations and Professions Article §6-301 et seq. — State of Maryland. Master Electrician licensing law.
Md. Public Safety Article §6-101 et seq. — State of Maryland. OSFM alarm systems licensing law.
NEC Articles 725, 760, 770, 800 — NFPA. Technical reference for the Master Electrician trade exam.
NFPA 72 — National Fire Alarm and Signaling Code — NFPA. Required reference for fire alarm work.

Pre-Application Checklist

Before submitting to MD DOL, the applicant should have each of the following ready:

☐ Seven years of qualifying electrical experience
☐ State Board of Master Electricians application with $30 fee
☐ PSI Master Electrician exam pass at 70%+
☐ OSFM Alarm Contractor application with $130 fee
☐ $300,000 / $300,000 / $50,000 commercial general liability (OSFM)
☐ Fingerprint-based MSP and FBI clearance for qualifying agent
☐ OSFM Alarm Systems Employee ID cards for technicians
☐ Workers compensation coverage certificate

Where Applications Stall

These are the recurring mistakes that most often delay or reject a Maryland Low Voltage application, based on the official instructions cited here.

Working with only the Master Electrician license

The Master Electrician license does not authorize burglar or fire alarm work. The OSFM Alarm Contractor license is required for both.

Missing employee ID cards

Every alarm technician must hold an OSFM Alarm Systems Employee ID card. OSFM audits employee rosters and fines $500 per unregistered worker.

Insufficient liability for OSFM

OSFM requires $300,000 / $300,000 / $50,000 commercial general liability. Many applicants discover their existing policy does not meet the per-occurrence limits.

Wrong qualifying agent

OSFM requires the qualifying agent to be a W-2 employee or owner physically present in Maryland. Loan-out arrangements are not permitted.

Missing CE for OSFM

OSFM Alarm Contractor renewal requires twelve hours of approved CE every two years. Missing CE blocks renewal and voids active monitoring contracts.

Other Maryland Trade Licenses

CLR maintains guides for additional Maryland trades; the published ones are listed here:

Common Questions

Does Maryland have a separate low-voltage license?

No. Low-voltage work falls under the statewide Master Electrician license. Burglar and fire alarm work additionally requires the OSFM Alarm Contractor license issued by the Office of the State Fire Marshal Alarm Systems Licensing Bureau.

How much experience does Maryland require for the Master Electrician?

Seven years of qualifying electrical experience, or four years as a licensed Maryland Journeyman Electrician.

Who licenses burglar and fire alarm businesses?

The Maryland Office of the State Fire Marshal Alarm Systems Licensing Bureau under Md. Public Safety Article §6-101 et seq. Both burglar alarm and fire alarm contractors must hold the OSFM Alarm Contractor license.

Does Maryland reciprocate with Virginia and West Virginia?

Yes. The State Board of Master Electricians maintains bilateral reciprocity with Virginia DPOR, West Virginia, and Delaware for active Master Electrician credentials.

How often do these credentials renew?

Master Electrician license renews every two years. OSFM Alarm Contractor license also renews every two years. Both require continuing education.

Primary Sources

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

Verified 2026-06-13 · Next scheduled review 2026-09-11