The CIMA Specification
The FAI sporting code for microlights and paramotors is a combination of the FAI General section and FAI Section 10.Annex 6 of FAI Section 10 GNSS Flight Recorders and other electronic devices contains the specification for flight recorders and the data they should produce.
http://www.fai.org/microlight/documents/sc10
To be used in FAI championships without a special dispensation from the CIMA Flight Recorder Approval Committee (FRAC) each type of flight recorder, and its download software, must be tested by FRAC and be granted an approval document.
These are at http://www.fai.org/microlight/flight_recorders