Compiled Laws, Chapter 168. Michigan Election Law § 168.797c

Sec. 797c.A person or company providing a computer program that examines, counts, tabulates, and prints results of the votes cast by a voter on an electronic voting system shall place in an escrow account a copy of the source code of the program and any subsequent revisions or modifications of the source code. The secretary of state or an authorized agent of the secretary of state shall agree to use the information contained in the source code solely for the purpose of analyzing and testing the software and shall not disclose proprietary information to any other person or agency without the prior written consent of the vendor.