"R" in the numeric designation signifies that the 2011 standard was reaffirmed (recertified) as an American National Standard in 2013 and in 2018. No changes can be made to a standard during reaffirmation.
This standard identifies and establishes the content of technical specifications for research and test reactors. Areas addressed are: Definitions, Safety Limits, Limiting Safety System Settings,Limiting Conditions for Operation, Surveillance Requirements, Design Features, and Administrative Controls. Sufficient detail is incorporated so that applicable specifications can be derived or extracted.