| Ex. MT-038 | Governor's letter to the Association of Montana Public Health Officials (AMPHO) clarifying the Phase Two 50-person gathering limitationLetter to AMPHO, September 4, 2020 (Phase Two gathering limitation does not apply to school-related or youth activities) | Governor Steve Bullock | MontanaState | Sept. 4, 2020 | 2020 Q32020 Q4 | Gathering capEvents and venues | Primary source read | |
| Ex. MT-048 | Order of Health Officer October 12, 2020 (12:30 a.m. close for bars and restaurants; 25-person gathering cap; masks and distancing required)Order of Health Officer, October 12, 2020 | John Felton, Local Public Health Officer, City-County of Yellowstone | Yellowstone County, MontanaCounty | Oct. 12, 2020 | 2020 Q4 | Capacity limitGathering capFace-covering requirementCurfew and hoursAlcohol and barsEvents and venues | Primary source read | |
| Ex. MT-052 | Order of Health Officer November 19, 2020 (25-person cap; 10 p.m. to 4 a.m. closure of all places of assembly; 50 percent capacity; congregate care order continued)Order of Health Officer, November 19, 2020 | John Felton, Local Public Health Officer, City-County of Yellowstone | Yellowstone County, MontanaCounty | Nov. 19, 2020 | 2020 Q42021 Q1 | Capacity limitGathering capFace-covering requirementHealth care ordersCurfew and hoursAlcohol and barsEvents and venues | Primary source read | |
| Ex. MT-084 | Order of Health Officer of Nov. 20, 2020 (mirroring the Governor's Nov. 17 Directive: gatherings 25 without distancing / 50 with distancing; 50 percent capacity; 10 p.m. closing; masks and distancing required of all businesses), continued Jan. 6, 2021 and loosened effective 5:00 a.m. Jan. 22, 2021 (75 percent capacity; 12:30 a.m. to 4 a.m. closure; events of 250 indoor / 500 outdoor with approved plans; gathering caps and masks retained) until the case rate is at or below 25 per 100,000 for four consecutive weeksCascade City-County Health Officer Order of November 20, 2020, as continued and amended | Trisha Gardner, Public Health Officer, Cascade City-County Health Department; Board of Health (Jan. 20, 2021 amendments) | Cascade County, MontanaCounty | Nov. 20, 2020 | 2020 Q42021 Q12021 Q2 | Capacity limitGathering capFace-covering requirementCurfew and hoursWorkplace rules | Confirmed from a secondary source | |
| Ex. MT-060 | Memorandum of the Chief Justice, December 21, 2020: Updated Judicial Branch Covid-19 ProtocolsUpdated Judicial Branch Covid-19 Protocols, December 21, 2020 | Chief Justice Mike McGrath, Supreme Court of Montana | Montana (statewide judiciary)Court | Dec. 21, 2020 | 2020 Q42021 Q12021 Q2 | Gathering capFace-covering requirementCourts and public officesWorkplace rules | Primary source read | |
| Ex. DUT-MT-026 | Directive Implementing Executive Order 2-2021 (Jan. 13, 2021) (cross-reference to Ex. MT-020)Directive of January 13, 2021: Public Gatherings; Businesses; Schools; General Masking Requirements | Governor Greg Gianforte | MontanaState | Jan. 13, 2021 | 2021 Q1 | Standing dutyFace-covering requirementWorkplace rulesOperating condition | Primary source read | |
| Ex. MT-020 | Directive Implementing Executive Order 2-2021 (Jan. 13, 2021)Directive Implementing Executive Order 2-2021 | Governor Greg Gianforte | MontanaState | Jan. 13, 2021 | 2021 Q1 | Telework mandateGathering capFace-covering requirementWorkplace rules | Primary source read | |
| Ex. DUT-MT-013 | Mont. Code Ann. 27-1-1602 (SB 65 sec. 2)Liability (COVID-19 civil liability protection) | Montana Legislature (67th), Senate Bill 65, Ch. 2, L. 2021, approved by Governor Gianforte Feb. 10, 2021 | MontanaState | Feb. 10, 2021 | 2021 Q12021 Q22021 Q3 | Standing dutyWorkplace rulesStanding dutyOther | Primary source read | |
| Ex. DUT-MT-014 | Mont. Code Ann. 27-1-1606 (SB 65 sec. 6)Affirmative defense -- reasonable measures consistent with regulations, orders, and public health guidance | Montana Legislature (67th), Senate Bill 65, Ch. 2, L. 2021 | MontanaState | Feb. 10, 2021 | 2021 Q12021 Q22021 Q3 | Standing dutyWorkplace rulesStanding dutyOperating condition | Primary source read | |
| Ex. DUT-MT-015 | Mont. Code Ann. 27-1-1601 (SB 65 sec. 1)Definitions ('public health guidance'; 'person'; 'premises'; 'personal protective equipment') | Montana Legislature (67th), Senate Bill 65, Ch. 2, L. 2021 | MontanaState | Feb. 10, 2021 | 2021 Q12021 Q22021 Q3 | Standing dutyWorkplace rulesStanding duty | Primary source read | |
| Ex. MT-087 | Senate Bill 65 (2021): COVID-19 civil liability protections for businesses, health care providers, nonprofit organizations and places of worship that take measures to protect individuals from COVID-19 and follow public health guidanceSenate Bill No. 65 (2021), COVID-19 liability protections | Montana Legislature (67th), Senate Bill 65, signed by Governor Gianforte Feb. 10, 2021 | MontanaState | Feb. 10, 2021 | 2021 Q12021 Q22021 Q3 | Workplace rulesOther | Confirmed from a secondary source | |
| Ex. DUT-MT-027 | Directive Implementing Executive Order 2-2021 (Feb. 12, 2021; rescinding and replacing all prior directives) (cross-reference to Ex. MT-021)Directive of February 12, 2021: General Masking; Phased Reopening no longer in force; Public Gatherings; Businesses | Governor Greg Gianforte | MontanaState | Feb. 12, 2021 | 2021 Q12021 Q2 | Standing dutyWorkplace rulesOther | Primary source read | |
| Ex. MT-021 | Directive Implementing Executive Order 2-2021 (Feb. 12, 2021; rescinding and replacing all prior directives)Directive Implementing Executive Order 2-2021 | Governor Greg Gianforte | MontanaState | Feb. 12, 2021 | 2021 Q12021 Q2 | Telework mandateHealth care ordersAlcohol and barsCourts and public officesWorkplace rulesSupply chainOther | Primary source read | |
| Ex. DUT-MT-005 | Mont. Code Ann. 50-2-118Powers and duties of local health officers | Montana Legislature (Montana Code Annotated, Title 50, ch. 2) | MontanaState | Sept. 28, 2026 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyBusiness closureGathering capEvents and venuesQuarantine and isolationStanding duty | Primary source read | |
| Ex. MT-073 | Mont. Code Ann. 50-2-116, Powers and duties of local boards of health, as amended in 2021 (HB 121: governing-body control of emergency health orders; HB 257: local rules may not compel businesses to deny customer access)Mont. Code Ann. 50-2-116. Powers and duties of local boards of health (MCA 2025 text with 2021 amendments) | Montana Legislature (67th): HB 121 (approved Apr. 16, 2021) and HB 257 (approved May 7, 2021 after an amendatory veto); codified at Mont. Code Ann. 50-2-116(4)-(9) (amd. Sec. 4, Ch. 324, L. 2021; amd. Sec. 8, Ch. 408, L. 2021) | MontanaState | May 7, 2021 | 2021 Q22021 Q3 | Events and venuesVaccination or testingOther | Primary source read | |
| Ex. DUT-MT-030 | Mont. Code Ann. 49-2-312 (cross-reference to Ex. MT-072)Discrimination based on vaccination status or possession of immunity passport prohibited -- definitions | Montana Legislature (67th), House Bill 702, Ch. 418, L. 2021, approved May 7, 2021 | MontanaState | May 7, 2021 | 2021 Q22021 Q3 | Standing dutyWorkplace rulesVaccination or testingStanding duty | Primary source read | |
| Ex. MT-072 | House Bill 702 (2021), An Act Prohibiting Discrimination Based on a Person's Vaccination Status or Possession of an Immunity Passport, codified at Mont. Code Ann. 49-2-312Mont. Code Ann. 49-2-312. Discrimination based on vaccination status or possession of immunity passport prohibited -- definitions (En. Sec.… | Montana Legislature (67th), HB 702, approved by Governor Gianforte May 7, 2021; 2021 Mont. Laws ch. 418 | MontanaState | May 7, 2021 | 2021 Q22021 Q3 | Workplace rulesVaccination or testing | Primary source read | |
| Ex. SEC-01-081 | House Bill 702 (2021)An Act Prohibiting Discrimination Based on a Person's Vaccination Status or Possession of an Immunity Passport | Montana Legislature (Governor Greg Gianforte signed) | MontanaState | May 7, 2021 | 2021 Q22021 Q3 | Workplace rulesVaccination or testingOther | Primary source read | |
| Ex. SEC-27-014 | House Bill 702 (2021), An Act Prohibiting Discrimination Based on a Person's Vaccination Status or Possession of an Immunity Passport, codified as Mont. Code Ann. sec. 49-2-312Unlawful discriminatory practice for a person or governmental entity to refuse services, goods, facilities, educational opportunities or… | Montana Legislature (House Bill 702, 67th Legislature), approved by Governor Gianforte | MontanaState | May 7, 2021 | 2021 Q22021 Q3 | Workplace rulesVaccination or testingOther | Primary source read | |
| Ex. DUT-MT-019 | Stand Up Montana v. Missoula County Public Schools, 2023 MT 240, No. DA 23-0046 (Mont. Dec. 12, 2023)Opinion affirming summary judgment for the Missoula County school districts on the substantive due process challenge to their 2021-22 mask… | Supreme Court of Montana (Gustafson, J.) | MontanaCourt | Dec. 12, 2023 | | Standing dutyFace-covering requirementSchools and child careWorkplace rules | Primary source read | |
| Ex. DUT-MT-010 | Mont. Code Ann. 50-71-201Employer to provide safe workplace and to purchase, furnish, and require use of health and safety items -- safe practices | Montana Legislature (Montana Code Annotated, Title 50, ch. 71) | MontanaState | Sept. 28, 2026 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyWorkplace rulesStanding duty | Primary source read | |
| Ex. DUT-MT-011 | Mont. Code Ann. 50-71-202Employer to provide and maintain safe place of employment | Montana Legislature (Montana Code Annotated, Title 50, ch. 71) | MontanaState | Sept. 28, 2026 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyWorkplace rulesStanding duty | Primary source read | |
| Ex. DUT-MT-012 | Mont. Code Ann. 39-71-1504Safety programs -- educational activities | Montana Legislature (Montana Code Annotated, Title 39, ch. 71, part 15, Montana Safety Culture Act) | MontanaState | Sept. 28, 2026 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyWorkplace rulesStanding duty | Primary source read | |
| Ex. DUT-MT-017 | Mont. Code Ann. 50-50-105Diseased person not to handle food | Montana Legislature (Montana Code Annotated, Title 50, ch. 50, Food Establishments) | MontanaState | Sept. 28, 2026 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyWorkplace rulesQuarantine and isolationStanding duty | Primary source read | |