{
  "codes": {
    "ADHR": "Ad hoc request.",
    "CABB": "Competent Authority for Buyer Branch.",
    "CABC": "Competent Authority for Basket Constituant.",
    "CABT": "Competent Authority for Buyer Transmitting Firm.",
    "CADB": "Competent Authority for Decision Making Branch.",
    "CADU": "Competent Authority for Direct Underlying.",
    "CAEB": "Competent Authority for Executing Branch.",
    "CAFI": "Competent Authority for Instrument.",
    "CAIX": "Competent Authority for Index.",
    "CAMB": "Competent Authority for Membership Branch.",
    "CASB": "Competent Authority for Seller Branch.",
    "CAST": "Competent Authority for Seller Transmitting Firm.",
    "CATV": "Competent Authority for Trading Venue."
  },
  "description": "Specifies the reason for the exchange with the national competent authority, as published in an external category purpose code list.",
  "name": "ExternalAuthorityExchangeReason1Code"
}