NIST has approved FIPS 203, FIPS 204, and FIPS 205 that prescribe key module-lattice-based key encapsulation, module-lattice-based digital signatures, and stateless hash-based digital signatures standards, respectively. Selected and approved PQC key-encapsulation algorithms are CRYSTALS-KYBER and Hamming Quasi Crypto (HQC), while digital signature algorithms are CRYSTALS-DILITHIUM, FALCON, and SPHINCS. HQC was selected for standardization.