[Code of Federal Regulations]

[Title 49, Volume 5]

[Revised as of October 1, 2005]

From the U.S. Government Printing Office via GPO Access

[CITE: 49CFR399.205]



[Page 493-495]

 

                        TITLE 49--TRANSPORTATION

 

                      DEPARTMENT OF TRANSPORTATION

 

PART 399_EMPLOYEE SAFETY AND HEALTH STANDARDS--Table of Contents

 

  Subpart L_Step, Handhold, and Deck Requirements for Commercial Motor 

                                Vehicles

 

Sec. 399.205  Definitions.



    Cab-over-engine (COE) A truck or truck-tractor having all, or the 

front portion, of the engine under the cab.



[[Page 494]]



    COE--High profile A COE having the door sill step above the height 

of the front tires.

    Deck plate A horizontal surface designed to provide a person with 

stable footing for the performance of work such as the connection and 

disconnection of air and electrical lines, gaining access to 

permanently-mounted equipment or machinery or for similar needs.

    Door sill step Any step normally protected from the elements by the 

cab door when closed.

    Effective peripheral grip Any shaped surface, free of sharp edges, 

in which a full grasp can be made to secure a handhold by a person.

    Fingertip grasp A handhold surface which provides a person contact 

restricted to finger segments 1 and/or 2 only; or which limits wrap-

around closure of finger segment 1 with the palm of the hand to 90 

degrees as shown in Illustration I.

[GRAPHIC] [TIFF OMITTED] TC01AP91.036



    Full grasp A handhold surface which provides a person contact with 

finger segments 2 and 3 and which provides space for finger segment 1 to 

wrap around toward the palm of the hand beyond the 90-degree surface 

restriction shown in Illustration I. The handhold need not require 

contact between fingers and thumb. For example, the hand position shown 

in Illustration II qualifies as full grasp.

[GRAPHIC] [TIFF OMITTED] TC01AP91.037



    Ground The flat horizontal surface on which the tires of a motor 

vehicle rest.

    Handhold That which qualifies as providing full grasp if a person is 

able to find a hand position on the handhold which allows more than 

fingertip grasp.

    Handprint The surface area contacted by the hand when grasping a 

handhold. The size of this area is the width of the hand across the 

metacarpal and half the circumference of the handhold. The hand breadth 

of the typical person is 88.9 millimeters (3.5 inches).

    Person Any individual within the 5th percentile female adult through 

the 95th percentile male adult of anthropometric measures as described 

by the 1962 Health Examination Survey, ``Weight, Height and Selected 

Body Dimensions of Adults, United States 1960-1962'' which is 

incorporated by reference. It is Public Health Service publication No. 

1000-Series 11-No. 8 and is for sale from the U.S. Department of 

Commerce, National Technical Information Service, 5285 Port Royal Road, 

Springfield, Virginia 22161. When ordering use NTIS Accession No. PB 

267174. It is also available for inspection at the National Archives and 

Records Administration (NARA). For information on the availability of 

this material at NARA, call 202-741-6030, or go to: http://

www.archives.gov/federal--register/code--of--federal--regulations/ibr--

locations.html. This incorporation



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by reference was approved by the Director of the Federal Register on 

July 17, 1979. These materials are incorporated as they exist on the 

date of the approval and a notice of any change in these materials will 

be published in the Federal Register.

    Slip resistant material Any material designed to minimize the 

accumulation of grease, ice, mud or other debris and afford protection 

from accidental slipping.