https://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-111.pdf
This NIST Special Publication provides recommendations to facilitate more efficient and effective storage encryption solution design, implementation, and management for Federal departments and agencies.
https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-175Br1.pdf
This NIST Special Publication is one part in a series of documents intended to provide guidance to the Federal Government for using cryptography to protect its sensitive, but unclassified digitized information during transmission and while in storage.
https://assets.contentstack.io/v3/assets/blt36c2e63521272fdc/bltc02245a703a85933/5e9de009674ec260f325c3d6/end_user_encryption_key_protection_policy.pdf
This SANS provided policy outlines the requirements for protecting encryption keys that are under the control of end users.
https://www.youtube.com/watch?v=Gi-niOoVAm4
This video from SANS educates viewers on the positive and negative aspects of using full disk encryption for security.