Archived - Standard Industrial Classification - Establishments (SIC-E) 1980

• F - Construction Industries
• 41 - Industrial and Heavy (engineering) Construction Industries
• 411 - Industrial Construction (Other Than Buildings)

4111 - Power Plants (Except Hydroelectric)

Establishments primarily engaged in the construction of nuclear and thermal generating stations. Establishments primarily engaged in the construction of hydroelectric generating stations are classified in 4123 - Hydroelectric Power Plants and Related Structures (Except Transmission Lines), construction.