With over 14 years of experience in trade licensing, Contractor School Online (CSO) is your primary resource to help you pass your state contractor license exam! We offer online practice tests, study materials, books and more.

To become a certified contractor in Hawaii, you must pass a Business and Law exam. Depending on the trade you are interested in, you may also be required to pass a trade exam as well. Please use our Information Request Form to find out more.

Below is a list of available license classifications in Hawaii that we can help you to obtain.

Engineering Construction:

A - General Engineering (Includes C-3, C-9, C-10, C-17, C-24, C31a, C-32, C-35, C-37a, C-37b, C-38, C-43, C-49, C-56, C-57a, C-57b, and C-61 specialty classificiations)

Building Construction

B - General Building (Includes the C-5, C-6, C-10, C-12, C-24, C-25, C-31a, C-32a, C-42a, and C-42b specialty classifications)

Specialty Construction

C-1 through C-68

Electricians

Journey Worker -- Residential and Commercial
Supervising -- Residential and Commercial
Journey Worker -- Industrial
Supervising -- Specialty
Maintenance

Plumbers:

Journey
Master

Every contractor is required to pass the OSHA exam.