Yes.  Registration is waived if the lobbyist:

• limits activities to public legislative committee sessions or state agency public hearings;
• participates in an effort, at the request of an agency, to reach a consensus on possible rule making – but once the agency files notice of the proposed rule, efforts to influence action are no longer exempt; or
• restricts lobbying to no more than four days – or parts of four days – during any three consecutive months and spends no more than $35 during the three month period for or on behalf of the state officials or employees in connection with the lobbying effort

Read more about registration exemption.