An apprenticeship is an arrangement in which you get hands-on training, technical instruction, and a paycheck—all at the same time. Apprentices work for a sponsor, such as an individual employer or a business-union partnership, who pays their wages and provides the training.
Formal apprenticeship programs usually last about 4 years, depending on the employer or occupation, although they may take as little as 12 months or as many as 6 years. Many of these programs are registered with the U.S. Department of Labor (DOL). At the end of a registered apprenticeship program, apprentices get a nationally recognized certificate of completion as proof of their skills.
To read BLS article, click: Report on Apprenticeship Programs