Re: time definitions-reply

["cpt daniel hamilton" <cpt_daniel_hamilton@WBAMC.SMTPLINK.AMEDD.ARMY.MIL>]

     Although dated, I attended a NRC workshop in 91, subject: 10 CFR, New 
     Part 20 Revision.  Written clarification was provided in a general 
     presentation given by Scott Moore, NRC, on "Time Requirements":
     
         Annual:  Once each year, anytime during the year, e.g. performing  
         an action on 1/1/90 and then again on 12/31/91 meets annual.
     
         Year:  Year must begin in January. Start date may change if made   
         at beginning of the year and if no day is omitted or duplicated in 
         consecutive years.
     
         Quarterly:  Once each quarter, anytime during the quarter.
     
         Quarter:  One-fourth of the year, beginning the first quarter on   
         the start date of the year.
     
     Also see 10 CFR Part 20.1003, Definitions. Hope this helps.
     
     Dan Hamilton
     Chief, Health Physics
     William Beaumont Army Medical Center
     CPT_Daniel_Hamilton@smtp.wbamc.amedd.army.mil
     
     Information provided is solely that of the author's and does not 
     represent a response from anyone other than the author.


______________________________ Reply Separator _________________________________
Subject: time definitions-reply
Author:  radsafe@romulus.ehs.uiuc.edu at Internet-Mail
Date:    7/10/98 6:59 PM


Many licensees define time periods with tolerances, e.g.,
 1 quarter , no to exceed 4 months
 semi-annual, not to exceed 8 months
 annual, not to exceed 15 months

but you need to also make certain the overall frequency is maintained.
Quarterly is 4 times per year, 8 times per 2 years.  You cannot use the 4
month tolerance to turn it into 3 times per year.

Also note that if the frequency is explictly cited in a regulation, e.g.,
every 6 months, that cannot be changed by a license condition.
Disclaimer:  the above are the personal musings of the author, and do not
represent any past, present, or future position of NIST, the U.S. government,
or anyone else who might think that they are in a position of authority. 
Lester Slaback, Jr.  [Lester.Slaback@NIST.GOV] 
NBSR Health Physics 
Center for Neutron Research 
NIST 
Gaithersburg, MD  20899 
301 975-5810