(a) Before engaging in any lobbying activity, or within thirty days after being employed as a lobbyist, whichever occurs first, a lobbyist shall register with the Ethics Commission by filing a lobbyist registration statement. The registration statement shall contain information and be in a form prescribed by the Ethics Commission by legislative rule, including, but not limited to, the following information:
(1) The registrant's name, business address, telephone numbers and any temporary residential and business addresses and telephone numbers used or to be used by the registrant while lobbying during a legislative session;