the text you quoted says > derivative works that comment on or otherwise explain > it or assist in its implmentation may be prepared, copied, note that it is restricted to "derivative works that comment on or otherwise explain it or assist in its implmentation" it is not open ended permission to copy or make derivative works RFC 2026 sec 10.3.1 (1) says that the right to produce derivative works is granted to the IETF(ISOC) it is not generally granted i.e. the rights under 3667 are the same as under 2026 its just stated more clearly Scott _______________________________________________ Ietf@xxxxxxxx https://www1.ietf.org/mailman/listinfo/ietf