Log into your www.gameofficials.net account
Click My Availability in the left hand navigation bar.
Select a date.
Choose Available or Unavailable.
Choose which group you are available for.
Enter a note if you wish to add a comment to your availability (e.g., "coaching a game immediately prior").
Click Save (Add Entry).
Your new entry will appear as text below, and graphically in the upper left corner of the availability page