The UCLA Anderson School of Management has released its deadlines for those aiming to apply for the MBA program beginning in the fall of 2013.
Deadline - 10/24/2012
Decision - 1/23/2013
Deadline - 1/9/2013
Decision - 4/3/2013
Deadline - 4/17/2013
Decision - 6/5/2013
The deadlines page notes that while rounds 1 and 2 are similar in competitiveness, round 3 becomes more competitive as offers are accepted.
As always, do verify all information directly at UCLA Anderson's official admissions site.