Disabled Player Exceptions Expire
Disabled Player Exceptions granted by the league in the event of season ending injury officially expire
Playoff Eligibility Waiver Deadline
Last day that players on an NBA roster can be waived and still be eligible for the playoffs
Trade Waiting Period – Re-signed Players
First day that players signed by the team they played for last season can be traded
Exception Proration Begins
Scale salary amounts & unused exceptions begin to reduce in value per day by 1/146 of the amount remaining of that exception starting on Feb 27.
Contract Guarantee Deadline
The base salary in all contracts becomes guaranteed for the remainder of this season (unless a buyout agreement takes place). A player must clear waivers before this date, so teams have to waive players by 5PM EST [...]