House Rule H40-30. Cosponsors. (1) Prior to submitting legislation to the Chief Clerk for introduction, the chief sponsor may add representatives and senators as cosponsors. A legislator shall sign the cosponsor form attached to the legislation in order to be added as a cosponsor.
(2) After legislation is submitted for introduction but before the legislation returns from the first House committee, the chief sponsor may add or remove cosponsors by filing a cosponsor form with the Chief Clerk. This filing must be noted by the Chief Clerk for the record on Order of Business No. 11.