{"type": "object", "properties": {"PARTICIPANTCATEGORYID": {"type": "string", "examples": ["B2B_ACCRED", "CUSTOMER", "DATAACCESS", "DISTOP", "DNSP", "DRSP", "EMBNETMAN", "GAS", "GENERATOR", "INTERNAL", "IRP", "MASP", "MDA", "MDP", "METERCOORD", "MNSP", "MPB", "MPC", "MSRP", "NMISP", "NONCODE", "NSP", "REALLOCATR", "RERT", "SMALL_GEN", "SSMSERVICE", "TNSP", "TRADER", "TRANSOP"], "description": "Participant category identifier"}, "DESCRIPTION": {"type": "string", "examples": ["B2B Accredited Participant", "Customer", "Data Access Participant", "Demand Response Service Provider", "Distribution Network Service Provider", "Distribution Operator", "Embedded Network Manager", "Gas Market Participant", "Generator", "Improving Security Frameworks (ISF)", "Integrated Resource Provider", "Internal - NEMMCO only", "Market Ancillary Service Provider", "Market Network Service Provider", "Market SAPS Resource Provider", "Meter Data Provider", "Meter Provider Type B", "Meter Provider Type C", "Metering Co-ordinator", "Metering Data Agent", "NMI Service Provider", "Network Service Provider", "Non-Code Participant", "Reallocator", "Reserve Trader", "SRA Settlement Residue Trader", "Small Generator Aggregator", "Transmission Network Operator", "Transmission Network Service Provider"], "description": "Category description"}, "LASTCHANGED": {"type": "string", "examples": ["1998/06/30 22:11:13"], "format": "date-time", "description": "Last date and time record changed"}}, "required": ["PARTICIPANTCATEGORYID"], "description": "PARTICIPANTCATEGORY sets out valid participant categories.\nPARTICIPANTCATEGORY is public data, so is available to all participants.\n\nSource\n\nPARTICIPANTCATEGORY updates as categories change. PARTICIPANTCATEGORY\nchanges infrequently."}