[Code of Federal Regulations]
[Title 49, Volume 5]
[Revised as of October 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR399.205]

[Page 500-501]
 
                        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.
    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

[[Page 501]]

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 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.