Passed in July 2006 by the Board of Alderman of the City of Valley Park, Mo., the town’s “Illegal Immigration Relief Act Ordinance” seeks to punish landlords who rent to and business owners and employers who hire undocumented workers. The law also seeks to make English the official language of the city.
https://www.aclu.org/cases/reynolds-v-city-valley-park-missouri#:~:text=Passed%20in%20July%202006%20by,official%20language%20of%20the%20city.