Home Rule is the idea where local governments are able to do anything not prohibited by state law or the state constitution.
In South Dakota (and much of the USA), cities are run under Dillon's Rule. In brief, Dillon's Rule states that local governments only have the powers granted to them by the state. Conversely, a city run under Home Rule has all the powers that the state has not specifically restricted (for example, starting in 1997, Home Rule cities were prohibited from passing taxes that a non-Home Rule city could not). Chapter 6-12 of the Codified Laws of South Dakota covers the rules of establishing a Home Rule charter.
Home Rule was added to the South Dakota Constitution in 1962. In 1965, Rapid City voters rejected a Home Rule charter. Since then, ten cities have adopted charters. Mayor Keith Carlyle investigated the option of changing Rapid City to Home Rule in 1989, but it was never put to a vote.
In December 2019, the Mayor and City Council requested that a committee be formed to investigate the adoption of a Home Rule Charter. Mayor Allender appointed 18 members to the committee in May 2020. The members of the committee will meet bi-monthly for the next year, to consider the option of a Home Rule Charter, and will make a recommendation to the Mayor and City Council at the end of their findings, in 2021. A website with information regarding the Home Rule Committee was created in September 2020.