Guide to Low Voltage Licensing

Simplified Guide to CT Low Voltage Licensing

Since 1965 a statewide electrical license has been required to work or operate a business within Connecticut

No reciprocity with any other states
No residency restrictions
No background check is required by the state
Connecticut requires more education classroom hours than neighboring states

Different types of licenses are required dependent on the type of work you will be doing

Contractor
- Limited by voltage and current
- Able to sell services to the public
- Able to hire journey person and apprentice
- Able to pull an electrical permit
- Continuing Education requirement is minimum of 4 hours annually
- See the DCP website for Fee Information
  - Renews on September 30th every year
Journeyperson
- Limited by voltage and current
- Can only work for a Connecticut licensed contractor
- Can only perform work for licensed category
- Cannot pull permits
- Continuing Education requirement is minimum of 4 hours annually
- See the DCP website for Fee Information
  - Renews on September 30th every year
Apprentice
- Must be registered with State Labor Department
- Cannot work on job alone without licensed supervision
- Must carry registration card on oneself when working in the field of his/her prospective license
- Record of training hours must be kept
- See the DCP website for Fee Information
  - Renews July 1st every year

Types of Licenses

T-1 Contractor
- Telecommunications, networking installation and service
- Able to sell services to public
- Must be registered with Connecticut Secretary of State
- Able to pull electrical permits
- Able to hire journeyperson and apprentice
- Must have been a T-2 journeyperson for 2 years
T-2 Journeyperson
- Telecommunications, networking installation and service
- Cannot sell services to the public
- Not able to pull electrical permits
- Able to supervise apprentice
- Must have documented education in the field and at least 4 years of equivalent experience or 5 years of equivalent experience or training as a service technician to take T-2 test
L-5 Contractor
- Low voltage contractor limited to alarm or signal work, audio and sound systems
- License limitations not to exceed 25 volts 5 amps
- Able to sell services as contractor to public
- Must be registered with Connecticut Secretary of State
- Able to pull electrical permits
- Able to hire journeypersons
- Must have been an L-6 Journeyperson for at least 2 years
L-6 Journeyperson
- Low voltage limited journeyperson alarm or signal work, audio and sound systems
- License limitations 25 volts & 5 amps
- Cannot sell services to public
- Not able to pull electrical permits
- Able to supervise apprentice
- Must have completed required apprenticeship or 4 years of equivalent experience with documented education
C-5 Contractor
- Low voltage contractor limited to low voltage systems and telephone interconnect
- License limitations not to exceed 48 volts 8 amps
- Able to sell services as contractor to public
- Must be registered with Connecticut Secretary of State
- Able to pull electrical permits
- Able to hire journeypersons
- Must have been a C-6 Journeyperson for at least 2 years
C-6 Journeyperson
- Low voltage journeyperson limited to low voltage systems and telephone interconnect
- License limitations not to exceed 48 volts 8 Amps
- Cannot sell services to public
- Not able to pull electrical permits
- Able to supervise apprentice
- Must have completed required apprenticeship or 4 years of equivalent experience with documented education

Education Requirements T-2
- T-Class license requires 288 hours of related classroom study consisting of:
  - Basic Math
  - Blueprint Reading
  - Electrical Code 1
  - Building Trade Safety (OSHA 30)
  - Electrical Theory 1
  - Basic Telecommunications
  - Electrical Theory 2
  - Telecom Cabling
Educational Requirements L-6
- L6 - Class license requires 288 hours of related classroom study consisting of:
  - Basic Math
  - Blueprint Reading
  - Electrical Code 1
  - Building Trade Safety (OSHA 30)
  - Electrical Theory 1
  - Basic Alarm Technology
  - Electrical Theory 2
  - Fire, access and CCTV systems
  - Educational requirements C-6
- C-6 class license requires 360 hours of related classroom study consisting of:
  - Basic math
  - Blueprint reading
  - Electrical code 1
  - Building trade safety (OSHA 30)
  - Electrical theory 1
  - Basic alarm technology
  - Electrical theory 2
  - Fire, access and CCTV systems
  - Basic telecommunications
  - Telecom cabling

Apprenticeship Information can be found on the Connecticut Department of Labor website here along with their FAQ Page.

Connecticut has an Apprentice Hiring Ratio as follows:

Once licensed, Connecticut requires 4 hours of Continuing Education each year through accredited schools for the class license as issued. Please see our CEU Offering page here.

Class subject matter is determined by the Electrical Board based upon changes in sate and/or national codes
Changes in technology and theory are interwoven with code changes

In 2026, Connecticut is moving to the 2023 National Electrical Code (NEC).

Here are Helpful Links:

Updated Spring 2026