[Code of Federal Regulations]
[Title 10, Volume 1]
[Revised as of January 1, 2005]
From the U.S. Government Printing Office via GPO Access
[CITE: 10CFR50.46a]

[Page 733]
 
                            TITLE 10--ENERGY
 
                CHAPTER I--NUCLEAR REGULATORY COMMISSION
 
PART 50_DOMESTIC LICENSING OF PRODUCTION AND UTILIZATION FACILITIES
--Table of Contents
 
Sec. 50.46a  Acceptance criteria for reactor coolant system venting 
systems.

    Each nuclear power reactor must be provided with high point vents 
for the reactor coolant system, for the reactor vessel head, and for 
other systems required to maintain adequate core cooling if the 
accumulation of noncondensible gases would cause the loss of function of 
these systems. High point vents are not required for the tubes in U-tube 
steam generators. Acceptable venting systems must meet the following 
criteria:
    (a) The high point vents must be remotely operated from the control 
room.
    (b) The design of the vents and associated controls, instruments and 
power sources must conform to appendix A and appendix B of this part.
    (c) The vent system must be designed to ensure that:
    (1) The vents will perform their safety functions; and
    (2) There would not be inadvertent or irreversible actuation of a 
vent.

[68 FR 54142, Sept. 16, 2003]