Most centers are testing. Some are with reduced volume for social distance spacing. Hours may be different to allow for cleaning between candidates. While some centers may be backlogged a month out, check other centers within your state as some centers have availability the same week.
New proctoring options going into effect October 2020 will allow for Online proctoring so that users can take assessments from their office or home without worrying about proctoring center availability or closures.