Pipefitters install, maintain, and repair many different types of piping used in buildings, factories, and utilities. These systems are used to heat and cool buildings, carry water, provide gas, and generate electricity. Pipefitters work from blueprints or drawings and perform such tasks as measuring, marking, cutting, and threading pipe to connect pipe systems. 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.