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

H - Communication and Other Utility Industries

49 - Other Utility Industries

Establishments primarily engaged in the generation, transmission and distribution of electricity the distribution of natural gas through a system of mains the treatment and distribution of water and in operating a utility not elsewhere classified.

491 - Electric Power Systems Industry

492 - Gas Distribution Systems Industry

493 - Water Systems Industry

499 - Other Utility Industries n.e.c.