Iowa Code § 490.501: Registered office and agent of domestic and registered foreign corporations.

1. Each corporation shall continuously maintain in this state all of the following:

a. A registered office that may be the same as any of its places of business.

b. A registered agent, which may be any of the following:

(1) An individual who resides in this state and whose business office is identical with the registered office.

(2) A domestic or foreign corporation or eligible entity whose business office is identical with the registered office and, in the case of a foreign corporation or foreign eligible entity, is registered to do business in this state.

2. As used in this subchapter, “corporation” means both a domestic corporation and a registered foreign corporation.