Connecticut
License Exam Preparation

General Info

Licenses are required for plumbing, heating, piping and cooling, electrical, elevator installation, repair and maintenance, fire protection sprinkler system, sheet metal, well drilling, and spa and pool maintenance and repair trades.

Each trade requiring a license will have to pass two exams, the trade portion and an open book business and law portion (based on NASCLA Business and Project Management, CT Edition)

Reciprocity

Connecticut does not have reciprocal agreements with any other state. However, if you are currently licensed in another state, you may request on your application to use your current license to apply towards Connecticut’s requirements

Statewide - Classifications

	Business Management
•	Business and Law

	Electrical
C-5	Limited Electrical Contractor
C-6	Limited Electrical Journeyperson
C-7	Limited Electrical Sign Contractor
C-8	Limited Electrical Sign Journeyperson
E-1	Unlimited Electrical Contractor
E-2	Unlimited Electrical Journeyperson
L-1	Electrical Lines Contractor
L-2	Electrical Lines Journeyperson
L-5	Limited Electrical Contractor (Low Voltage)
L-6	Limited Electrical Journeyperson (Low Voltage)
T-1	Limited Electrical Contractor (Telephone)
T-2	Limited Electrical Journeyperson (Telephone)

	Mechanical
B-1	Limited Gas and Oil Burner Contractor
B-2	Limited Gas and Oil Burner Journeyperson
B-3	Limited gas and Oil Contractor
B-4	Limited gas and Oil Journeyperson
BM-1	Boiler Maker
BM-2	Boiler Maker Journeyperson
D-1	Limited Warm Air, Air Conditioning and Refrigeration Systems Contractor
D-2	Limited Warm Air, Air Conditioning and Refrigeration System Journeyperson
D-3	Limited Heating-Cooling Contractor
D-4	Limited Heating-Cooling Journeyperson
G-1	Limited Natural and LP Gas
G-2	Limited Natural and LP Gas Journeyperson
G-8	Limited Welding Journeyperson
G-9	Limited Welding
MT-1	Limited Heating and Cooling
MT-2	Limited Heating and Cooling Journeyperson
S-1	Unlimited Heating, Piping and Cooling Contractor
S-2	Unlimited Heating, Piping and Cooling Journeyperson
S-3	Limited Heating, Cooling and Piping Contractor
S-4	Limited Heating, Cooling and Piping Journeyperson
S-5	Limited Heating, Hot Water, and Steam Contractor
S-6	Limited Heating, Hot Water, and Steam Journeyperson
S-7	Limited Contractor (Hot Water or Steam Heating)
S-8	Limited Journeyperson (Hot Water or Steam Heating)
S-9	Limited Heating Cooling Contractor (Hot Water or Steam Heating)
S-10	Limited Heating Cooling Journeyperson
VT-1	Limited Heating and Cooling (Valves)
VT-2	Limited Heating and Cooling Journeyperson (Valves)

	Sheet Metal
SM-1	Limited Sheet Metal Contractor
SM-2	Limited Sheet Metal Journeyperson
SM-3	Limited Sheet Metal Residential/Light Commercial Contractor
SM-4	Limited Sheet Metal Residential/Light Commercial Journeyperson
SM-5	Limited Sheet Metal Contractor (Hood Ductwork Systems)
SM-6	Limited Sheet Metal Journeyperson (Hood Ductwork Systems)

	Plumbing
J-1	Limited Contractor (Water Pumps and Conditioning)
J-2	Limited Well Pumps and Piping Journeyperson
P-1	Unlimited Plumbing Contractor
P-2	Unlimited Journeyperson Plumbing
P-6	Limited Sewer, Storm and Water Journeyperson
P-7	Limited Sewer, Storm and Water Contractor
W-8	Limited Drainlayer Journeyperson
W-9	Limited Drainlayer

	Glaziers
FG-1	Glazier Contractor (Flat)
FG-2	Glazier Journeyperson (Flat)

	Fire Protection
F-1	Unlimited Contractor
F-2	Unlimited Journeyperson
F-3	Limited Contractor
F-4	Limited Journeyperson

Additional Notes
•	Trades with this background are for information, links free books and statutes only.
•	Green bullets or trade codes indicate a recently updated page.

Connecticut License Exam Preparation

Statewide - Classifications

Business Management

Electrical

Limited Electrical Contractor (Low Voltage)

Limited Electrical Journeyperson (Low Voltage)

Limited Electrical Contractor (Telephone)

Limited Electrical Journeyperson (Telephone)

Mechanical

Sheet Metal

Plumbing

Limited Contractor (Water Pumps and Conditioning)

Glaziers

Glazier Contractor (Flat)

Glazier Journeyperson (Flat)

Fire Protection

Additional Notes

Trades with this background are for information, links free books and statutes only.

Connecticut
License Exam Preparation