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49 CFR 199.21 Interpretations

Control of Drug Use in Natural Gas, Liquefied Natural Gas, and Hazardous Liquid Pipeline Operations:
Contractor Employees (View the Regulation)

Date PHMSA ID Company (or Individual)
Aug 9, 1993 PI-93-048 The Williams Companies, Inc.
Aug 14, 1992 PI-92-040 Citizens Utilities Company
Jan 13, 1992 PI-92-005 Porter, Wright, Morris & Arthur
Nov 14, 1991 PI-91-033 No Information
Mar 11, 1991 PI-91-006 Memo: Internal
May 15, 1990 PI-90-017 Petroleum Helicopters, Inc.
Mar 14, 1990 PI-90-013 Intermountain Gas Company
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