Skip to main content
U.S. flag

An official website of the United States government

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.

The NIST STEP class library (STEP into the future):



Michael J McLay, Katherine C Morris
- NIST IR 4411
Report Number
NIST IR 4411


McLay, M. and Morris, K. (1990), The NIST STEP class library (STEP into the future):, , National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed May 19, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created January 1, 1990, Updated May 19, 2023