The working team designated within the electronic invoice group to design a standard and protocol that may technically permit the exchange of electronic invoices between the countries, met in Salvador, Brazil, on May 4 to 6. The meeting was sponsored by the State Secretariat of Finance of Bahía and ENCAT.

The meeting concluded with the design of a mechanism based on mutual trust between tax administrations, whereby an administration may consult invoices that may be of interest to it, regarding foreign trade as well as for other fiscal purposes. The exchange standard, based on XML will include a series of common and minimum standard information in terms of identification, control and amounts.

A procedures manual and the XML schemes will be available in 60 days and it is likewise expected that the tax administrations of Brazil and Mexico will test them for approximately  60 days.