A standard for adoption and use by federal departments and agencies that has been developed within the Information Technology Laboratory and published by NIST, a part of the U.S. Department of Commerce. A FIPS covers some topic in information technology to achieve a common level of quality or some level of interoperability.
Sources:
FIPS 201-3 under Federal Information Processing Standards

  A standard for adoption and use by federal departments and agencies that has been developed within the Information Technology Laboratory and published by the National Institute of Standards and Technology, a part of the U.S. Department of Commerce. A FIPS covers some topic in information technology in order to achieve a common level of quality or some level of interoperability.
Sources:
NIST SP 1800-16B under Federal Information Processing Standards (FIPS)
NIST SP 1800-16C under Federal Information Processing Standards (FIPS)
NIST SP 1800-16D under Federal Information Processing Standards (FIPS)
NISTIR 7622 under Federal Information Processing Standards

  A standard for adoption and use by federal departments and agencies that has been developed within the Information Technology Laboratory and published by NIST. A standard in FIPS covers a specific topic in information technology to achieve a common level of quality or some level of interoperability.
Sources:
NIST SP 1800-12b under Federal Information Processing Standards

  Standards for adoption and use by federal departments and agencies that are developed by NIST, a part of the U.S. Department of Commerce. FIPS address topics in information technology to achieve common levels of quality, security, and interoperability.
Sources:
NIST SP 800-63-4 [