Mayor Lori E. Lightfoot, Executive Order No. 2020-2 (Apr. 7, 2020) (Ex. MET-CHI-052)
Commissioner of Health of the City of Chicago, Public Health Order No. 2020-7 (May 8, 2020) (Ex. MET-CHI-012)
Commissioner of Health of the City of Chicago, Repealer of Public Health Order No. 2020-11 (Jan. 31, 2021) (Ex. MET-CHI-023)
Cook County Department of Public Health, Order of the Cook County Department of Public Health No. 2021-9 (June 10, 2021) (Ex. MET-CHI-040)
Commuter Rail Division of the Regional Transportation Authority (Metra), Metra COVID-19 operating rules: mask mandate and alternate schedules (agency page as archived Aug. 2, 2021) (Ex. MET-CHI-051)
Chicago Department of Public Health (official COVID-19 Orders web page), CDPH 'COVID-19 Orders' page as archived October 17, 2021 (Current Orders list and order summaries) (Oct. 17, 2021) (Ex. MET-CHI-061)
