[Code of Federal Regulations]
[Title 10, Volume 1]
[Revised as of January 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 10CFR34.33]

[Page 554]
 
                            TITLE 10--ENERGY
 
                CHAPTER I--NUCLEAR REGULATORY COMMISSION
 
PART 34--LICENSES FOR INDUSTRIAL RADIOGRAPHY AND RADIATION SAFETY 
REQUIREMENTS FOR INDUSTRIAL RADIOGRAPHIC OPERATIONS--Table of 
Contents
 
                          Subpart C--Equipment
 
Sec. 34.33  Permanent radiographic installations.

    (a) Each entrance that is used for personnel access to the high 
radiation area in a permanent radiographic installation must have 
either:
    (1) An entrance control of the type described in Sec. 20.1601(a)(1) 
of this chapter that reduces the radiation level upon entry into the 
area, or
    (2) Both conspicuous visible and audible warning signals to warn of 
the presence of radiation. The visible signal must be actuated by 
radiation whenever the source is exposed. The audible signal must be 
actuated when an attempt is made to enter the installation while the 
source is exposed.
    (b) The alarm system must be tested for proper operation with a 
radiation source each day before the installation is used for 
radiographic operations. The test must include a check of both the 
visible and audible signals. Entrance control devices that reduce the 
radiation level upon entry (designated in paragraph (a)(1) of this 
section) must be tested monthly. If an entrance control device or an 
alarm is operating improperly, it must be immediately labeled as 
defective and repaired within 7 calendar days. The facility may continue 
to be used during this 7-day period, provided the licensee implements 
the continuous surveillance requirements of Sec. 34.51 and uses an 
alarming ratemeter. Test records for entrance controls and audible and 
visual alarm must be maintained in accordance with Sec. 34.75.