Ind. Code § 3-9-1-5.5
(a) This section applies to the following candidates:
(c) Not later than noon ten (10) days after either:
(2) the candidate makes more than five hundred dollars ($500) in expenditures;
whichever occurs first, the candidate shall file a written instrument designating the name of the principal committee and the names of the chairman and treasurer of the committee.
As added by P.L.26-2000, SEC.10.