CLDXF (Civic Location Data Exchange Format)

A United States emergency services profile of PIDF‑LO that defines a set of standard data elements that describe detailed street address information.

NENA-STA-004, NENA Next Generation 9-1-1 (NG9-1-1) United States Civic Location Data Exchange Format (CLDXF) Standard

RFC 6848, Specifying Civic Address Extensions in the Presence Information Data Format Location Object (PIDF-LO)