..I don't know about other states, but, here in N.J., you need 60 months(5yrs) consecutive time working for a licenced contractor...then you may sit for the test..I took a "prep" course to get me on track..it was well worth the $550.00, the state also gives allowances for training in an accredited school/adult or vocational classes..and may diminish the required time spent in the field....Good Luck, Man,..it's a great field, and you NEVER stop learning!!!!
AR


.."if it ain't fixed,don't break it...call a Licensed Electrician"