United States
U.S. Department of Labor, Employment and Training Administration
State of Oregon, Apprenticeship and Training Division
Massachusetts Office of Labor and Workforce Development
State of Wisconsin, Apprenticeship Standards
New York State Department of Labor, Apprenticeship
Workforce One, Registered Apprenticeship Community
Bureau of Labor Statistics, Occupational Data
International
European Centre for the Development of Vocational Training
Federal Institute for Vocational Education, BIBB, Germany
Red Seal Standards Program, Canada
International Network on Innovative Apprenticeships
