Soldier Systesms Daily is reporting that LAPD banned Serpa holster. Considering the LAPD's size and position in the LE field, this is a severe implication. This decision is supposedly regarding off-duty CCW carry. The on duty holster is Safariland.
http://soldiersystems.net/2017/06/23/lapd-bans-use-of-blackhawk-serpa-holster/
From: Soldier Systems Daily