All lobbyists must register on or before the date their lobbying activities begin. A University employee is prohibited from lobbying on behalf of the University, unless the employee's registration includes a statement designating the employee as its representative. Executive Branch lobbyists must register with the Iowa Ethics and Campaign Board. Legislative Branch lobbyists file with the Secretary of the Senate or the Chief Clerk of the House. Legislative Branch registrations expire at the beginning of each session. Executive branch registrations expire at the end of each calendar year. Changes must be registered within ten days once known to the lobbyist. The lobbyist may cancel the registration if service concludes before the expiration.