To do electrical work in Nebraska you need to be licensed by the Nebraska State Electrical Division. Some cities in the state require an additional license.
Licensing body: Nebraska State Electrical Board
Electric code: NEC 2011 edition
Electrical contractor: Minnesota and South Dakota
Journeyman electrical license: Alaska, Arkansas, Colorado, Idaho, Iowa, Minnesota, Montana, New Mexico, North Dakota, Oklahoma, South Dakota, Utah, Wyoming
Resources: Nebraska Electrical Division