[Code of Federal Regulations]
[Title 49, Volume 4]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR230.23]

[Page 380]
 
                        TITLE 49--TRANSPORTATION
 
       CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF 
                             TRANSPORTATION
 
PART 230_STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS--Table of 
Contents
 
                   Subpart B_Boilers and Appurtenances
 
Sec. 230.23  Responsibility for general construction and safe working 
pressure.


    The steam locomotive owner and operator are responsible for the 
general design and construction of the steam locomotive boilers under 
their control. The steam locomotive owner shall establish the safe 
working pressure for each steam locomotive boiler, after giving full 
consideration to the general design, workmanship, age, and overall 
condition of the complete boiler unit. The condition of the boiler unit 
shall be determined by, among other factors, the minimum thickness of 
the shell plates, the lowest tensile strength of the plates, the 
efficiency of the longitudinal joint, the inside diameter of the course, 
and the maximum allowable stress value allowed. The steam locomotive 
operator shall not place the steam locomotive in service before ensuring 
that the steam locomotive's safe working pressure has been established.

                            Allowable Stress