DC Low Voltage Contractor License Requirements (2026)

The District of Columbia Department of Buildings (DOB), Office of the Surveyor, licenses electricians under DC Code §47-2853. The DC Master Electrician license authorizes electrical contracting for any voltage scope including low-voltage installations. Burglar alarm and monitored security work additionally requires a Security Officer Management Branch (SOMB) Alarm Dealer License under DC Code §47-2839.01 and 17 DCMR Chapter 20, issued by the DC Department of Consumer and Regulatory Affairs (DCRA, now Office of the Deputy Mayor for Operations and Infrastructure). Pure structured cabling under 50 V may be performed without an electrical license under DC permit rules but the contractor business still needs a DC Basic Business License (BBL).

Governing Authority

This license is issued and enforced by District of Columbia Department of Licensing and Consumer Protection — Board of Industrial Trades (DLCP) pursuant to D.C. Official Code Title 47 Chapter 28 (Basic Business License); D.C. Municipal Regulations Title 17 (Business, Occupations, and Professionals). DLCP (formerly DCRA) issues the Basic Business License (BBL) including the Home Improvement Contractor endorsement, and staffs the Board of Industrial Trades which licenses master and journey electricians, plumbers, steamfitters (HVAC), and refrigeration and air-conditioning mechanics in the District of Columbia.

Official portal: https://dlcp.dc.gov/
Address: 1100 4th Street SW, Washington, DC 20024
Phone: (202) 671-4500

Eligibility Requirements

At a minimum the applicant has to be 21 years old and supply a valid Social Security Number. No DC residency requirement.

Good moral character

DOB reviews criminal history. SOMB disqualifies alarm dealer applicants with felony convictions in the prior ten years involving fraud or theft.

Background investigation

DOB requires criminal disclosure. SOMB requires fingerprint-based MPD and FBI background checks for the alarm dealer qualifying agent and every employee installer.

Experience & Education Matrix

Plan to substantiate 7 years of DC Master Electrician: seven years of practical experience as a journeyman electrician (or five years plus an electrical engineering degree) under a DC Master Electrician under §47-2853.124. SOMB Alarm Dealer: two years of alarm-industry experience plus completion of an SOMB-approved training course. 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

DOB Experience Verification Form signed by each supervising DC Master Electrician
W-2 statements covering the qualifying period
Accredited electrical engineering degree (for substitution credit)
SOMB-approved alarm training course certificate
MPD / FBI fingerprint cards (SOMB)

Education substitution

A four-year electrical engineering degree counts for two years of experience toward the seven-year journeyman requirement.

Examination Structure

Examinations are administered by PSI Services LLC under contract to DC DOB.. The applicant must pass the following examination parts before the license can issue:

PSI DC Master Electrician examination — open book, NEC and DC amendments — 100 questions, 360 minutes, passing score 75%
PSI DC Business and Law examination — 50 questions, 120 minutes, passing score 75%

Examination fee: $110 per part to PSI.

Retake policy: Failed parts may be re-taken individually after 30 days.

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

DOB requires a minimum $300,000 commercial general liability for the Master Electrician license. SOMB requires alarm dealers to maintain minimum $1,000,000 combined liability under 17 DCMR §2003.

Workers' compensation

Workers' compensation is mandatory under DC Code §32-1503 for any DC employer.

Additional financial requirements

No financial statement required.

Application and License Fees

Fee	Amount
Application (non-refundable)	$300
Examination	$220
Initial license	$300
Renewal (every 2 years)	$300

Maintenance & Renewal

Expect to renew the DC Department of Buildings Master Electrician (with Low-Voltage Endorsement) and DC Security Officer Management Branch Alarm Dealer every 2 years. Renewal currently costs $300. Master Electrician renews every two years on November 30 of even-numbered years; SOMB renews biennially.

Continuing education: DOB requires 18 hours of approved continuing education each two-year cycle for the Master Electrician.

Downloadable Asset

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

Download the PDF roadmap →

Reciprocity and Endorsement

District of Columbia does not accept the NASCLA Accredited Examination for this classification.

Reciprocal State	Accepted Exam	Conditions
Maryland	Master Electrician reciprocity	DC DOB and Maryland State Board of Master Electricians have a longstanding bilateral reciprocity agreement.
Virginia	Master Electrician reciprocity	DC DOB and Virginia DPOR bilateral reciprocity for active master electricians.

DC has bilateral master electrician reciprocity with Maryland and Virginia. SOMB Alarm Dealer licenses are 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.

Step-by-Step Application Roadmap

Document seven years of journeyman experience. Compile DOB Experience Verification Forms signed by DC Master Electricians covering seven years (or five plus an electrical engineering degree).
Pass the PSI DC Master Electrician and Business and Law exams. Score 75% on each.
Submit the DOB application. File with the $300 fee, exam pass certificates, $300,000 general liability certificate, and DC Basic Business License (BBL).
Apply for SOMB Alarm Dealer License (if doing burglar alarm). File with the $300 fee, qualifier training certificate, MPD/FBI fingerprint cards, and proof of $1,000,000 liability.
Register every alarm installer with SOMB. Each employee installer must hold an individual SOMB registration and clear MPD/FBI fingerprint background.
Receive credentials and renew biennially. Master Electrician renews every two years on November 30 of even-numbered years; SOMB renews biennially.

Common Filing Mistakes

Based on the board's own instructions and the sources cited here, the problems below are what most often stall a District of Columbia Low Voltage application.

Missing the DC Basic Business License

A trade license without a BBL is not enough. DOB will not issue permits to a contractor that does not hold a current BBL.

Skipping the SOMB Alarm Dealer License

Master Electrician alone does not authorize burglar alarm or monitored security work in DC. SOMB licensure is independent and required.

Underestimating the seven-year experience

DC requires seven years of journeyman experience — among the highest in the country. An electrical engineering degree shaves two years.

Missing fingerprint clearance

Every SOMB-licensed alarm installer must hold current MPD and FBI fingerprint clearance.

Letting the BBL lapse

A lapsed BBL automatically suspends the Master Electrician license until reinstated.

Study and Reference Materials

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.

National Electrical Code (NFPA 70), DC-adopted edition — NFPA. Open book at the PSI Master Electrician exam.
DC Construction Codes Title 12 — DC Office of the Surveyor. DC amendments to the NEC. Required reference for both exams.
NFPA 72 — National Fire Alarm and Signaling Code — NFPA. Required for fire alarm content.

Pre-Submission Checklist

The most critical documents or confirmations the applicant should have in hand before filing with DLCP:

☐ Seven years of journeyman experience (or five + EE degree)
☐ PSI DC Master Electrician exam pass at 75%
☐ PSI DC Business and Law exam pass at 75%
☐ DOB application with $300 fee
☐ $300,000 commercial general liability certificate
☐ DC Basic Business License (BBL)
☐ SOMB Alarm Dealer License (if applicable)
☐ MPD / FBI fingerprint cards (SOMB)

Other District of Columbia Trade Licenses

Should the Low Voltage path not apply, these other District of Columbia trade guides from CLR may help:

Frequently Asked Questions

Does DC have a separate low-voltage contractor license?

No dedicated low-voltage license exists. DC Master Electrician covers all voltage scopes. Burglar alarm work additionally requires the SOMB Alarm Dealer License.

Who licenses burglar alarm dealers in DC?

The Security Officer Management Branch (SOMB) within the DC Department of Consumer and Regulatory Affairs under DC Code §47-2839.01.

How much experience does DC require for the Master Electrician?

Seven years of journeyman experience or five years plus an electrical engineering degree.

Do I need a DC Basic Business License?

Yes. Every contracting business in DC must hold a Basic Business License (BBL) in addition to the trade license.

How often does the Master Electrician renew?

Every two years on November 30 of even-numbered years.

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