When Library of Congress (LC) decided to fully implement RDA cataloging, LC, with the support of the PCC, determined that the LC/NACO Name Authority File (NAF) should also be fully RDA in order to support RDA cataloging.
March 31, 2013 has been set by LC as Day One for RDA Implementation. After this date, all cataloging and authority at LC will be done in RDA. See the following link for the whole announcement and the training plan: