Official websites use .gov
A
.gov website belongs to an official government
organization in the United States.
Secure .gov websites use HTTPS
A
lock (
) or https:// means you’ve safely connected to
the .gov website. Share sensitive information only on official,
secure websites.
Recent Lexicon Releases
The SPECIALIST lexicon is open source and freely available, subject to the applicable terms and conditions. The file below contains the current release in both the Lexicon Unit format and the ASCII relational format.
