Most tournaments can be found on volleyballlife.com
However, CBVA publishes their tournaments separately. You can find a complete list of CBVA tournaments here: Full Schedule (cbva.com)
Mandala is also a member of BVCA and will also participate in their tournaments.
Players that are competing in local and national events will need to visit these websites for memberships:
There are 3 major associations and although the rules are similar there are a couple of differences:
Amateur Athletic Union (AAU) Rules
AVP America Rules
FIVB International Rules