Electricians install electrical systems in factories, office buildings, homes, and other structures. Electricians read blueprints to locate outlets, circuits, and panel boards. Those who work as commercial electricians may install, test or repair motors, transformers, generators or electronic controllers on machinery or equipment. The Associated Builders and Contractors San Diego (ABCSD) Apprenticeship program is a state and federally recognized construction training program. Apprenticeship Career and Technical Education (CTE) combines paid on-the-job training and work experience with formal classroom instruction. Apprentices are employed by a company where they receive hands-on training, and attend classes in the evening to study theory and participate in hands-on technical training.