[Code of Federal Regulations]
[Title 40, Volume 18]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR92.7]

[Page 413-414]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 92--CONTROL OF AIR POLLUTION FROM LOCOMOTIVES AND LOCOMOTIVE ENGINES--
Table of Contents
 
 Subpart A--General Provisions for Emission Regulations for Locomotives 
                         and Locomotive Engines
 
Sec. 92.7  General standards.

    (a) Locomotives and locomotive engines may not be equipped with 
defeat devices.
    (b) New locomotives fueled with a volatile fuel shall be designed to 
minimize evaporative emissions during normal operation, including 
periods when the engine is shut down.
    (c)(1) Locomotive hardware for refueling locomotives fueled with a 
volatile fuel shall be designed so as to minimize the escape of fuel 
vapors.
    (2) Hoses used to refuel gaseous-fueled locomotives shall not be 
designed to be bled or vented to the atmosphere under normal operating 
conditions.
    (3) No valves or pressure relief vents shall be used on gaseous-
fueled locomotives except as emergency safety devices, and these shall 
not operate at normal system operating flows and pressures.
    (d) All new locomotives and new locomotive engines subject to any of 
the standards imposed by this subpart shall, prior to sale, introduction 
into service, or return to service, be designed to include features that 
compensate for changes in altitude to ensure that the locomotives or 
locomotive engines will comply with the

[[Page 414]]

applicable emission standards when operated at any altitude less than 
7000 feet above sea level.