| Ex. MT-085 | County COVID-19 emergency declaration of March 13, 2020 (rescinded July 2021) and county public health rules (masks; gathering limits) tightened January 2021 and no longer enforced after HB 257 (May 2021)Lewis and Clark County COVID-19 emergency declaration and public health rules | Lewis and Clark County Commissioners; Lewis and Clark City-County Board of Health and Health Officer | Lewis and Clark County (Helena), MontanaCounty | Mar. 13, 2020 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Emergency declarationGathering capFace-covering requirement | Confirmed from a secondary source | |
| Ex. DUT-MT-016 | Mont. Code Ann. 27-1-1608 (SB 65 sec. 8)Limitation on requirements | Montana Legislature (67th), Senate Bill 65, Ch. 2, L. 2021 | MontanaState | Feb. 10, 2021 | 2021 Q12021 Q22021 Q3 | Standing dutyFace-covering requirementVaccination or testingOther | Primary source read | |
| Ex. MT-061 | Memorandum of the Chief Justice, May 17, 2021: Updated Judicial Branch Covid-19 ProtocolsUpdated Judicial Branch Covid-19 Protocols, May 17, 2021 | Chief Justice Mike McGrath, Supreme Court of Montana | Montana (statewide judiciary)Court | May 17, 2021 | 2021 Q22021 Q3 | Face-covering requirementCourts and public offices | Primary source read | |
| Ex. MT-042 | Temporary Emergency Rule I, MAR Notice No. 37-960 (Notice of Adoption of Temporary Emergency Rule)In the matter of the adoption of Temporary Emergency Rule I to allow students and/or their parents or guardians the ability to opt-out of… | Montana Department of Public Health and Human Services | MontanaState | Aug. 31, 2021 | 2021 Q3 | Face-covering requirementSchools and child care | Primary source read | |
| Ex. MT-088 | School district mask requirements for the 2021-22 school year (Missoula, Bozeman, Helena, Billings, Whitefish)2021-22 school district mask requirements (Montana) | Boards of Trustees of the named school districts | Missoula County Public Schools; Bozeman, Helena, Billings and Whitefish school districts, MontanaCity | Aug. 31, 2021 | 2021 Q3 | Face-covering requirementSchools and child care | Confirmed from a secondary source | |