1.4 Document Conventions
NIST PIV and digital identity SP 800-156
All changes in this version
All changes in this version
Title
Document Conventions
Control
Throughout this document key words are used to identify requirements. The key words “optional”, “required”, “shall”, “shall not”, and “should” are used. These words are a subset of the IETF Request For Comments (RFC) 2119 [ RFC2119 ] key words, and have been chosen based on convention in other normative documents. In addition to the key words, the words ‘need,’ ‘can,’ and ‘may’ are used in this document, but are not intended to be normative.