The Apache Traffic Server project uses the default ASF by-laws, with the following exceptions and addenda. See these details about normal project management policies.
PMC membership
The vote for PMC membership is combined with the committer vote. The candidate has an option to join as either committer, or both committer and PMC member. If the candidate agrees to join the PMC, the normal 72h grace period of board approval applies before PMC membership is to be granted.