[BR-CL-01]-An Invoice MUST be coded with the InvoiceTypeCode code list UNCL D1001 TC434 subset [BR-CL-02]-The lists of valid languages are registered with the ISO 639 Maintenance Agency Codes for the Representation of Names of Languages. It is recommended to use the ISO 639-1 alpha-2 representation [BR-CL-03]-currencyID MUST be coded using ISO code list 4217 alpha-3 [BR-CL-04]-Invoice currency code MUST be coded using ISO code list 4217 alpha-3