NIST Special Publication 800-131A

Citation
National Institute of Standards and Technology, Transitions: Recommendation for Transitioning the Use of Cryptographic Algorithms and Key Lengths (NIST Special Publication 800-131A, Rev.1) (Nov. 2015) (full-text).

Overview
This publication provides guidance for transitions to the use of stronger cryptographic keys and more robust algorithms by Federal government agencies when protecting sensitive, but unclassified information.