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Posting mobile-crane load charts in the cab

Summary A regional administrator asked how mobile-crane load charts could meet posting and visibility rules. OSHA said a notebook securely attached inside the cab could satisfy the posting requirement if the relevant instructions, warnings, and load ratings remained visible to the operator at the controls. OSHA labels this memo archival and warns it may no longer represent policy.
Document
Federal opinion letter
Agency
Occupational Safety and Health Administration (OSHA)
Document number
1991-11-05-2
Date issued
November 5, 1991
Status
Archived by the agency
This is an OSHA Archive Document, and may no longer represent OSHA Policy; OSHA presents it as historical content for research and review.
Status last verified October 9, 2026

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This is an OSHA Archive Document, and may no longer represent OSHA Policy; OSHA presents it as historical content for research and review. It may no longer reflect the agency's current position. Treat this page as historical context, not current guidance, and verify current law before relying on anything here.
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NOTICE: This is an OSHA Archive Document, and may no longer represent OSHA Policy. It is presented here as historical content, for research and review purposes only.

November 5, 1991

MEMORANDUM FOR: R. DAVIS LAYNE
REGIONAL ADMINISTRATOR

THROUGH: LEO CAREY, DIRECTOR
OFFICE OF FIELD PROGRAMS

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

SUBJECT: Load Charts for Mobile Cranes

This is in response to your August 14 memorandum in which you request clarification of the load chart posting and visibility requirements for mobile cranes.

We agree with your statement that the crane industry is currently supplying information, including load charts, in a manner different than what was done and acceptable to OSHA in the past. Consequently, it is our interpretation that the posting requirements of 29 CFR 1910.180(c)(2), "...securely fixed...;" 29 CFR 1926.550(a)(2), "...shall be conspicuously posted...;" and 29 CFR 1926.550(f)(1)(ii), "...securely fixed...;" are met when the required information is contained in a notebook securely attached to the interior of the crane cab, such as by the use of a lanyard. However, this interpretation does not change the need to have the relevant instructions, warnings and load rating charts for a lift "visible to the operator" as required by 29 CFR 1910.180(c)(2), 29 CFR 1926.550(a)(2), and 29 CFR 1926.550(f)(1)(ii). When information is contained in bookform, a way of complying with these provisions would be to provide a bookholder designed to keep the book open to the relevant page(s), and located so as to be visible to the operator while at the control station.

With these interpretations, we do not believe an OSHA Instruction STD is necessary.

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