Research Information Letters

Research Information Letters (RILs) are documents issued by the NRC's Office of Nuclear Regulatory Research to the NRC regulatory and regional offices that summarize, synthesize, and/or interpret significant research information relevant to a given technical area, provide new or revised information, and discuss how that information may be used in regulatory activities. RILs can improve regulatory efficiency and effectiveness by providing important, pertinent information in a timely, concise, and comprehensive summary.

If you have questions about a RIL, please contact us for assistance.

2000s: 2024 2023 2022 2021
2020 2019 2015 2014 2013 2012 2011 2009
2008 2007 2006 2004 2003 2002 2001 2000
1900s: 1994 1993 1992 1991 1990 1989 1988 1987
1986 1985 1984 1983 1982 1981 1980 1979
1978 1977 1976 1974