Utah Code § 16-1a-503: Registration to do business in this state.

(1) A filing foreign entity may not do business in this state until the filing foreign entity registers with the division in accordance with this chapter.

(2) A filing foreign entity doing business in this state may not maintain an action or proceeding in this state unless the filing foreign entity registers to do business in this state.

(3) The failure of a filing foreign entity to register to do business in this state does not:

(a) impair the validity of a contract or act of the filing foreign entity; or

(b) preclude the filing foreign entity from defending an action or proceeding in this state.

(4) A foreign unincorporated entity, a series of a foreign unincorporated entity, a filing foreign entity, or a foreign limited liability partnership does not waive the limitation on the liability of a series of a foreign unincorporated entity, an interest holder of a filing foreign entity, a governor of a filing foreign entity, or a partner of a foreign limited liability partnership because the foreign unincorporated entity, the series of a foreign unincorporated entity, the filing foreign entity, or the foreign limited liability partnership does business in this state without registering to do business in this state.