Directives - Table of Contents
• Record Type: Instruction
• Directive Number: STD 01-01-010
• Old Directive Number: STD 1-1.10
• Title: Height of Guardrails in General Industry Applications
• Information Date: 06/30/1981
• Standard Number: 1910.23(e)(1)

OSHA Instruction STD 1-1.10 June 30, 1981 Office of Compliance Programming

Subject: Height of Guardrails in General Industry Applications

A. Purpose. This instruction provides guidance for the equitable enforcement of 29 CFR 1910.23(e)(1) as it pertains to the acceptable height of guardrails.

B. Scope. This instruction applies OSHA-wide.

C. Action. OSHA Regional Administrators/Area Directors shall classify technical violations of 29 CFR 1910.23 (e)(1) as de minimis violations, where the employer has provided guardrails which meet the following specifications:

1. Existing guardrailing shall consist of a top rail, intermediate rail, and posts, or equivalent, and shall have a minimum vertical height of 36 inches to 44 inches from the upper surface of the top rail to the floor, platform, runway or ramp level.
2. Guardrailings with heights greater than 44 inches are permissible provided the extra height does not create a dangerous situation for employees. Openings beneath the top rail that would permit the passage of a 19 inch or larger spherical object would create an unsafe condition, therefore, additional mid-rails may be necessary.
3. Deviations from the standard which are deemed to be de minimis violations, as herein described, apply only to the General Industry standards, 29 CFR 1910, and do not affect the specified requirements for guardrailings set forth in the Maritime or Construction standards.

D. Federal Program Change. This instruction describes a Federal program change which affects State Programs. Each Regional Administrator shall:

1. Ensure that this change is forwarded to each State designee.

OSHA Instruction STD 1-1.10 June 30, 1981 Office of Compliance Programming

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