October 21, 1991
MEMORANDUM FOR: ALL REGIONAL ADMINISTRATORS
FROM: PATRICIA K. CLARK, DIRECTOR
DIRECTORATE OF COMPLIANCE PROGRAMS
SUBJECT: CONTINUING ENFORCEMENT OF THE LOCKOUT/TAGOUT
STANDARD, 29 CFR 1910.147.
The lockout/tagout standard, 29 CFR 1910.147, continues to remain in full
effect during the ongoing considerations by the U.S. Court of Appeals for the
District of Columbia Circuit. This decision was issued on September 16, by
As you may know, the United Auto Workers (UAW) and National Association of
Manufacturers (NAM) filed case #89-1559 pertaining to this standard in the
District Court. Unless the court, at some future date, modifies the
enforceability of the existing standard, all enforcement personnel shall
apply the stipulations of the standard and utilize OSHA Instruction STD
1-7.3, dated September 11, 1990.
Should further information concerning this very important standard be
provided by the court, subsequent direction will be provided.