The FCC definition of a “commonly accepted standard” is:
Enable interoperability; and are:
• Developed and approved by a standards development organization that is accredited by a United States standards body (such as the American National Standards Institute) or an equivalent international standards body in a process that—
• Is open to the public, including open for participation by any person; and
Provides for a conflict resolution process;
• Subject to an open comment and input process before being finalized by the standards development organization;
Consensus-based; and
• Made publicly available once approved.
There are 4 standards that fit this definition for NG911:
NENA Standard for NG9-1-1 GIS Data Model
NENA Next Generation 9-1-1 (NG9-1-1) United States Civic Location Data Exchange Format (CLDXF-US) Standard
NENA i3 Standard for Next Generation 9-1-1
Revised Civic Location Format for Presence Information Data Format Location Object (PIDF-LO)