NIST published FIPS 203 (ML-KEM), FIPS 204 (ML-DSA) and FIPS 205 (SLH-DSA) in August 2024. NIST IR 8547, finalised on 27 October 2026, sets deprecation of RSA, ECDSA, EdDSA and Diffie-Hellman after 2030 and disallowance after 2035. Executive Order 14412, signed on 22 June 2026, and OMB Memorandum M-26-15 direct federal agencies to prioritise migration of high-value assets and high-impact systems.