Who needs to register as a TPA and how often do I need to register?

Pursuant to RCW 70.290.075, if the clients represented by the TPA offer private health plan or self-funded employer plan coverage that might include vaccine material being provided to patients under the age of 19, then both state-based and out-of-state TPAs are required to register with the Washington Vaccine Association so we can keep you informed of the latest policies, changes, and reductions to vaccine charges. You only need to register once as long as your information is current. Your record can be modified by going to the registration page and entering your EIN and password.