Here is a link to the requirements of each state.....for example in VA the requirements are different than in other states. Give this link a look see. Here is VA's for a journeyman...
Journeyman
Requirements: One of the following: 4 years of practical experience in the trade and 240 hours of formal vocational training in the trade. Experience in excess of four years may be substituted for formal vocational training at a ratio of one year of experience for 80 hours of formal training, but not to exceed 200 hours; An associate degree or a certificate of completion from at least a two-year program in a tradesman related field from an accredited community college or technical school as evidenced by a transcript from the educational institution and two years of practical experience in the trade for which licensure is desired; A bachelor's degree received from an accredited college or university in an engineering curriculum related to the trade and one year of practical experience ; or On or after July 1, 1995, an applicant with ten years of practical experience in the trade as verified by reference letters of experience from any of the following: building officials, building inspectors, current or former employers, contractors, engineers, architects or current or past clients, attesting to the applicant?s work in the trade, may be granted permission to sit for the journeyman?s level
examination without having to meet the educational requirements.
http://www.mikeholt.com/statelicense.php