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General contractor responsibility for hazard communication

Summary An OSHA regional office asked when a general contractor may be cited for hazard communication violations at a construction site. OSHA said its multi-employer citation approach for hazard communication is the same as for other standards. For each employer cited, OSHA must show actual knowledge of the hazardous condition or knowledge that reasonable diligence would have revealed.
Document
Federal opinion letter
Agency
Occupational Safety and Health Administration (OSHA)
Document number
1991-06-10-0
Date issued
June 10, 1991
Status
Active
Status last verified October 9, 2026

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About this page: The full text below is the official document from Occupational Safety and Health Administration (OSHA). Ezel adds the plain-English summary and tracks the document's status. The official source linked on this page is authoritative for any reliance.

June 10, 1991

MEMORANDUM FOR: LINDA R. ANKU
REGIONAL ADMINISTRATOR

FROM: PATRICIA K. CLARK, DIRECTOR
DIRECTORATE OF COMPLIANCE PROGRAMS

SUBJECT: Hazard Communication in Construction - General Contractor Responsibilities

This is in response to your memos of March 11 and May 8 regarding the enforcement of the Hazard Communication Standard (HCS) on construction sites. You specifically requested clarification on situations where the general contractor on a construction site may be responsible for or cited for violations of the HCS.

As explained in our letter to Senator Bentsen of January 29, 1990, and in CPL 2-2.38C (see pages 21-22 and pages A-14 through A-18), the Agency's citation policy for hazard communication violations at multi-employer worksites is no different than for violations of any other OSHA standard. The Field Operations Manual, Chapter V., Section F., "Multi-Employer Worksites," also gives specific guidance on the Agency's citation policies and states, at V.F.1.b. that: "It must be shown that each employer to be cited has knowledge of the hazardous condition or could have had such knowledge with the exercise of reasonable diligence. (See Chapter IV, B.1.b.(4)."

We believe this guidance is applicable to the situations raised in your memoranda. Please feel free to contact Melody Sands of my staff (FTS: 523-8036) if you have any further questions.

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