CSA ISO/IEC/IEEE 8802-15-4
Information technology - Telecommunications and information exchange between systems - Local and metropolitan area networks - Specific requirements - Part 15-4: Wireless medium access control (MAC) and physical layer (PHY) specifications for low-rate wireless personal area networks (WPANs) (Adopted ISO/IEC/IEEE 8802-15-4:2018, second edition, 2018-03)