Massachusetts Low-Voltage License Requirements (2026)

Massachusetts does not have a blanket exemption for work described as “low voltage.” The Board of State Examiners of Electricians says the licensing analysis depends on the work’s use and advises installers to coordinate with the local inspector of wires. State law covers work installing wiring or devices for fire warning or security purposes. Massachusetts separately licenses an individual Systems Technician (Class D) for systems work and a Systems Contractor (Class C) for conducting the systems business; an entity conducting systems work uses a C1 systems-business license with a Massachusetts Systems Contractor as Licensee of Record. Security-system work adds the separate S-license and, for employees doing security work, Certificates of Clearance.

Regulatory Body

Massachusetts Board of State Examiners of Electricians and Office of Public Safety and Inspections (BSEE / OPSI) administers the credential or scope-specific rules discussed here under M.G.L. c. 141, §§ 1–3; 237 CMR 12.00, 13.00, 17.00, and 22.00; M.G.L. c. 147, §§ 57–61. Whether that pathway applies depends on the work scope and conditions explained below. The Board licenses Systems Technicians (Class D) and Systems Contractors (Class C). A systems business uses a C1 business license with a Massachusetts Systems Contractor Licensee of Record. OPSI separately administers the S-license and security-worker Certificates of Clearance.

Official portal: https://www.mass.gov/board-of-state-examiners-of-electricians-licensing

Eligibility Requirements

This guide does not establish a minimum applicant age; confirm any age requirement with the issuing authority. Check the current application for identification and tax-number requirements. The cited Board paths require Massachusetts licenses for systems work and a Massachusetts Systems Contractor Licensee of Record for a C1 business. Out-of-state entities use the business-license process and applicable Secretary of the Commonwealth filings.

Good moral character

Use the Board’s current application, documentation, and CORI material where required. This guide does not claim unsupported automatic disqualification rules.

Background investigation

The Board application materials include DOL CORI documentation. Security-system employees need a Certificate of Clearance and OPSI runs CORI checks for those applications.

Experience and Education

At least 2 years of Systems Technician (Class D): 4,000 hours of systems work over at least two years under a Massachusetts Systems Technician or Journeyman Electrician, plus 300 hours of Board-approved education. Systems Contractor (Class C): Massachusetts Systems Technician license, at least one year of work experience, and 75 hours of Board-approved education. has to be evidenced and confirmed. Retain payroll, tax, project, or supervisor records, since the board may audit the experience claimed.

Accepted proof of experience or eligibility

Systems Technician education and work-experience verification forms required by the current Board process
High-school diploma or equivalent for the Systems Technician examination path
Systems Contractor documentation showing active Massachusetts Systems Technician license, one year of experience, and 75 hours of Board-approved education
C1 business entity, Licensee of Record, and Secretary of the Commonwealth documents for a systems business
S-license and Certificates of Clearance documentation for security-system work

Education substitution

The Board regulations describe limited credit rules for qualifying electrical education and experience. Use the current Board forms and regulations for any equivalency request.

Exam Requirements

Testing provider or authority: PSI administers current Massachusetts individual electrical and systems examinations. The following examination requirements cover the pathways described in this guide; follow each part's classification, waiver, and local-scope conditions. Unpublished format details do not remove an examination requirement:

Systems Technician (Class D) examination — question count: confirm with the authority, timing: confirm with the authority, passing score: confirm in the current candidate bulletin
Systems Contractor (Class C) examination — question count: confirm with the authority, timing: confirm with the authority, passing score: confirm in the current candidate bulletin

Examination fee: The state lists PSI processing fees of $60 for Systems Technician and $75 for Systems Contractor, plus $80 trade and $55 business/practical examination administration fees. Those examination charges do not include license issuance. A C1 electrical/systems business application is $221 per license.

Retake policy: Use the current PSI Candidate Information Bulletin and Board instructions for examination scheduling, score, and retake rules.

Insurance and Bonds

No statewide contractor license surety bond is required for this credential in the cited sources. Project-specific, permit, or public-works bonds may still apply, so confirm bonding before bidding a given job.

General liability

The Board’s C1 business application requires a limited-liability certificate of insurance for an LLC or LLP. The cited state materials do not state a universal general-liability minimum for every systems contractor or project.

Workers' compensation

Assess workers’ compensation obligations separately for the business and workforce. It is not a substitute for the individual, business, or security credential analysis.

Additional financial requirements

No financial-statement requirement is listed on the cited individual systems or C1 business application pages.

Fee Schedule

Fee	Amount
Application	$221
Initial license	No separate amount recorded; confirm in the fee guidance
Renewal (every 3 years)	$78

To turn these board fees into a realistic year-one budget — bond premium, liability insurance, and exam prep included — open the cost calculator preloaded for Massachusetts low voltage.

Renewal and Continuing Education

The Massachusetts Systems Technician, Systems Contractor, and C1 Systems Business Requirements runs on a 3 years renewal cycle. The current renewal fee is $78. Massachusetts sends renewal notices before the July 31 expiration date. The listed $78 is the state-published Systems Technician renewal fee; confirm Systems Contractor and C1 business renewal charges before filing.

Continuing education: 237 CMR 17.00 requires 21 clock hours in the three years before renewal for licensees subject to the rule: 15 hours in Board-approved code/business/law topics and six hours of professional development. Systems courses focus on applicable Massachusetts Electrical Code, adopted NFPA 72, and systems law/regulation.

Reciprocity

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

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

Massachusetts says it has reciprocity only with New Hampshire, and the Board’s application FAQ describes that agreement for Journeyman and Master licensing. Do not assume systems or business-license reciprocity.

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

Low Voltage Licensing in Neighboring States

Contractors working near a state line, or weighing where to qualify first, should compare Massachusetts's requirements against the bordering jurisdictions before committing to an application:

Connecticut Low Voltage License Requirements — Connecticut C-5/C-6 and L-5/L-6 Limited Electrical License Requirements
New Hampshire Low Voltage License Requirements — New Hampshire Low-Voltage Electrical and Fire-Alarm Requirements
New York Low Voltage License Requirements — New York Security or Fire Alarm Installer — Article 6-D
Rhode Island Low Voltage License Requirements — Rhode Island Telecommunications, Fire-Alarm, and Burglar-Alarm Licensing Paths
Vermont Low Voltage License Requirements — Vermont Low-Voltage Electrical Work: Type-S, Journeyman, Master, and Fire-Alarm TQP Scope

Step-by-Step Application Roadmap

Classify the installed system and ask the local inspector of wires. There is no generic low-voltage exception. Identify whether the work is fire warning, security, signaling, another inherently power-limited system, or full electrical work, and confirm permit/inspection requirements with the authority having jurisdiction.
Choose the individual license path. A Systems Technician (Class D) performs systems work. A Master or Journeyman electrician can perform electrical work within their broader license scope. Do not use a voltage label alone to choose the credential.
Qualify for the Systems Technician examination. Document 4,000 hours over at least two years under a Massachusetts Systems Technician or Journeyman, complete 300 hours of Board-approved education, and meet the Board’s current education and application requirements.
Qualify for the Systems Contractor examination. After obtaining the Massachusetts Systems Technician license, document at least one year of work experience and 75 hours of Board-approved education before applying for the Class C examination.
License the systems business correctly. A company conducting systems work needs a C1 systems-business license and a Massachusetts Systems Contractor as its Licensee of Record. Submit the entity, LOR, and organizational documents through the DOL business-license process.
Add the security path when the system is a security system. For installing, repairing, or maintaining security systems, obtain the separate S-license after holding a valid electrical or systems license. Employees engaging in security work must obtain a Certificate of Clearance before doing that work.
Pull local electrical permits and complete inspection. State licensure does not replace municipal permit and inspector-of-wires requirements. Coordinate the local filing, inspection, and accepted work scope before installation.
Renew individual credentials and maintain continuing education. The Board’s renewal cycle is tied to the July 31 expiration date. Complete 21 hours of continuing education during the three-year period before renewal for licenses subject to 237 CMR 17.00.

Application Checklist

Before submitting to BSEE / OPSI, the applicant should have each of the following ready:

Exact systems/electrical/security scope classified with the local inspector of wires
Class D Systems Technician experience and 300-hour education completed when that path applies
Class C Systems Contractor one-year Class D experience and 75-hour education completed when contracting as a systems business
Current PSI application and examination process completed
C1 business license and Massachusetts Systems Contractor Licensee of Record in place for an entity
S-license and employee Certificates of Clearance completed for security-system work
Municipal electrical permit and inspection requirements satisfied
Three-year continuing education and renewal calendar maintained

Common Filing Mistakes

The errors below are the ones that most frequently cost Massachusetts Low Voltage applicants time, drawn from the cited board guidance.

Assuming a voltage label creates a license exemption

The Board explicitly says Massachusetts has no generic low-voltage exemption. Scope, purpose, permanent connection, and local inspector direction matter.

Treating Class C as the technician credential

Class D authorizes the individual systems technician. Class C is the systems-contractor/business credential and follows the Class D experience path.

Operating an entity without a C1 licensee-of-record arrangement

A company performing systems work needs the C1 business structure with a Massachusetts Systems Contractor Licensee of Record.

Overlooking the separate security-system license

Security systems add the S-license and employee Certificate of Clearance process; electrical/systems licensing alone is not the full security compliance path.

Skipping local permit and inspection coordination

The Board directs installers to coordinate with the local inspector of wires. State credentials do not issue the municipal permit or replace inspection.

Study and Reference 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.

M.G.L. c. 141 and 237 CMR 12.00 — Massachusetts General Court / Board of State Examiners of Electricians. Primary authority for systems work, Class C contractor, Class D technician, and the absence of a generic low-voltage exemption.
237 CMR 13.00 and 22.00 — Board of State Examiners of Electricians. Systems Technician and Systems Contractor experience and education prerequisites.
Massachusetts Electrical Code and adopted NFPA 72 — Commonwealth of Massachusetts / NFPA. Use the current Board/PSI materials for the current exam references and systems-specific code study.

Other Massachusetts Trade Licenses

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

Frequently Asked Questions

Is low-voltage wiring exempt from Massachusetts licensing?

No blanket exemption exists. The Board says there is no generic “low voltage” exception and that licensing depends on the use of the wiring; coordinate with the local inspector of wires.

What is the difference between Class D and Class C?

Class D is the individual Systems Technician license for systems work. Class C is the Systems Contractor license for conducting the systems business and requires the applicant to have held Class D for at least one year.

When does a systems company need a C1 business license?

The Board says a company doing systems work needs a business license with a Massachusetts Systems Contractor Licensee of Record; that systems-business credential is C1.

What is required for the Massachusetts Systems Technician exam?

The Board lists 4,000 hours over at least two years under a Massachusetts Systems Technician or Journeyman Electrician, 300 hours of Board-approved education, and the other current application documentation.

Do security systems need another Massachusetts license?

Yes. State law and OPSI guidance require an S-license for the business of installing, repairing, or maintaining security systems after a valid electrical or systems license is held. Employees doing security work need Certificates of Clearance.

Primary Sources

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

Verified 2026-09-04 · Next scheduled review 2026-12-03

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Corrections and presentation updates

2026-09-30: Corrected examination detection when format details are unpublished and updated the summary layout and requirements score. Source-check dates are unchanged.
2026-09-08: Shared template updated to distinguish unspecified eligibility requirements, retain cost qualifications, and use consistent headings. Source-check dates are unchanged by presentation updates.
2026-09-21: Local-only guides now use a compliance-focused structure and terminology instead of implying a statewide license application. Source-check dates are unchanged by this presentation update.