USSF occassionally releases "Position Papers" and "directives" that are to clarify how USSF referees should handle situations that arise that may be unclear in LOTG. USSF and NH referees are expected to remain current on these papers. The most recent are listed below in the "Attachments" section.
The following links are to USSF sites containing a plethora of information relevant to decisions and postions, please stay up to date by reading these links periodically:
The International Football Association Board - Latest updates to the Laws of the Game
USSF Game Report: Forms download or get copies below!