LDraw.org Standards: List of Official META Commands
The following is a list of META commands that have been formally adopted into the LDraw.org File Format and links to the applicable specifications. Note that all new official META commands will have a "!" as the prefix character and must be in capital letters
For a list of the known unoffical META commands see:
List of Known Unofficial META Commands and the Programs That Use Them
LDRAW_ORG
Deprecated in favour of !LDRAW_ORG