(a) The North American Industry Classification System (NAICS) has replaced the Standard Industrial Classification (SIC) system.

(b) This count includes only those establishments that reported this activity in 1994 and 1998.

(c) Examples of Special Rate Schedules are interruptible rates and time-of-use rates.

(d) Some examples of Steam Production are boilers, burners, insulation, and piping.

(e) Some examples of Direct Process Heating are compressors, sizing, and leak reduction.

(f) Some examples of Direct Machine Drives are adjustable-speed drives, motors, and pumps.

(g) Facility Heating, Ventilation, and Air Conditioning (Facility HVAC) excludes steam and hot water.

    Notes: Totals may not equal sum of components because of independent rounding.

    Source: Energy Information Administration, Office of Energy Markets and End Use, Energy Consumption Division, Form EIA-846, '1994 and 1998 Manufacturing Energy Consumption Surveys.'