49 CFR Part 399 — Employee Safety and Health Standards

PART 399—EMPLOYEE SAFETY AND HEALTH STANDARDS Authority: 49 U.S.C. 31502; and 49 CFR 1.87. Source: 44 FR 43732, July 26, 1979, unless otherwise noted. Subparts A-K [Reserved] Subpart L—Step, Handhold, and Deck Requirements for Commercial Motor Vehicles § 399.201 Purpose and scope. This subpart prescribes step, handhold, and deck requirements on commercial motor vehicles. These requirements are intended to enhance the safety of motor carrier employees. § 399.203 Applicability. This subpart applies to all trucks and truck-tractors, having a high profile cab-over-engine (COE) configuration, for entrance, egress and back of cab access, manufactured on and after September 1, 1982. [44 FR 43732, July 26, 1979, as amended at 46 FR 56799, Nov. 19, 1981] § 399.205 Definitions. Cab-over-engine (COE) COE—High profile Deck plate Door sill step Effective peripheral grip Fingertip grasp Full grasp Ground Handhold Handprint Person, (1) Any individual within the 5th percentile female adult through the 95th percentile male adult of anthropometric measures as described by Weight, Height and Selected Body Dimensions of Adults, United States 1960-1962. (2) Vital and Health Statistics; Series 11, No. 8 (6/65), Weight, Height and Selected Body Dimensions of Adults, United States 1960-1962, https://transportation.libanswers.com. www.archives.gov/federal-register/cfr/ibr-locations fr.inspection@nara.gov. www.cdc.gov/cdc-info/forms/contact-us.html. www.cdc.gov/nchs/data/series/sr_11/sr11_008.pdf. Slip resistant material [44 FR 43732, July 26, 1979, as amended at 91 FR 45662, July 21, 2026] § 399.207 Truck and truck-tractor access requirements. (a) General rule. Exception. (b) Performance requirements. (1) Vertical height. (2) Distance between steps. (i) When the ground provides the person foot support during entry or is the final step in the sequence during exit, and the step is 508 millimeters (20 inches) or more above ground, the stable resting position shall be achievable by the person using both hands to grasp the handhold(s) and requiring no more arm force than 35 percent of body weight per grasp. (ii) The vertical height of the first step shall be no more than 609 millimeters (24 inches) from ground level. (3) Construction. (4) Foot accommodation. (i) Single foot accommodation. (ii) Two-foot accommodation. Note: The 127 millimeter (5 inch) disc is only intended to test for a minimum depth and width requirement. The step need not retain the disc at rest. (5) Step strength. (6) Handhold location. (7) Exterior mounting specifications for handholds. (8) Handhold size and shape. (9) Handhold strength. (10) Deck plates. (11) Deck plate strength. § 399.209 Test procedures. (a) The force exerted on a handhold will be measured using a handheld spring scale or force transducer which can be attached to the vehicle and is free to rotate into alignment with a person's hand position. (b) Hand grasp will be evaluated by observing the handgrip of any individual who conforms with the definition of “person” appearing in § 399.205 of this subpart. § 399.211 Maintenance. All steps, handholds, and/or deck plates required by this subpart shall be adequately maintained to serve their intended function.

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