| 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 MT-085 | County COVID-19 emergency declaration of March 13, 2020 (rescinded July 2021) and county public health rules (masks; gathering limits) tightened January 2021 and no longer enforced after HB 257 (May 2021)Lewis and Clark County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-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. 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. 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. DUT-MT-007 | Mont. Code Ann. 50-2-124Penalties for violations | Montana Legislature (Montana Code Annotated, Title 50, ch. 2) | MontanaState | Sept. 28, 2026 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyStanding duty | Primary source read | |
| Ex. DUT-MT-029 | Mont. Code Ann. 50-2-116 (Powers and duties of local boards of health) (cross-reference to Ex. MT-073)Powers and duties of local boards of health, including the 2021 limits of subsection (5) and the enforcement saving clause of subsection (7) | Montana Legislature (Mont. Code Ann. 50-2-116, as amended by Ch. 324 and Ch. 408, L. 2021 (HB 121, approved Apr. 16, 2021; HB 257, approved May 7, 2021)) | MontanaState | Apr. 16, 2021 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyBusiness closureQuarantine and isolationStanding dutyOperating condition | 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-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 | |
| Ex. DUT-MT-001 | Mont. Code Ann. 50-1-202General powers and duties (Department of Public Health and Human Services) | Montana Legislature (Montana Code Annotated, Title 50, ch. 1) | MontanaState | Sept. 28, 2026 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyBusiness closureQuarantine and isolationStanding duty | Primary source read | |
| Ex. DUT-MT-002 | Mont. Code Ann. 50-1-203Public health inspections | Montana Legislature (Montana Code Annotated, Title 50, ch. 1) | MontanaState | Sept. 28, 2026 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyBusiness closureStanding dutyOperating condition | Primary source read | |
| Ex. DUT-MT-003 | Mont. Code Ann. 50-1-204Quarantine and isolation measures | Montana Legislature (Montana Code Annotated, Title 50, ch. 1) | MontanaState | Sept. 28, 2026 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyQuarantine and isolationStanding duty | Primary source read | |
| Ex. DUT-MT-004 | Mont. Code Ann. 50-1-103Enforcement of public health laws | Montana Legislature (Montana Code Annotated, Title 50, ch. 1) | MontanaState | Sept. 28, 2026 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyStanding duty | Primary source read | |
| Ex. DUT-MT-006 | Mont. Code Ann. 50-2-123Compliance order authorized | Montana Legislature (Montana Code Annotated, Title 50, ch. 2) | MontanaState | Sept. 28, 2026 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyStanding dutyOperating condition | Primary source read | |
| Ex. DUT-MT-008 | Mont. Code Ann. 10-3-104General authority of governor | Montana Legislature (Montana Code Annotated, Title 10, ch. 3) | MontanaState | Sept. 28, 2026 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyEmergency declarationStay-at-homeBusiness closureTravel and quarantineStanding duty | Primary source read | |
| Ex. DUT-MT-009 | Mont. Code Ann. 10-3-103Definitions ('disaster' includes 'outbreak of disease'; 'emergency') | Montana Legislature (Montana Code Annotated, Title 10, ch. 3) | MontanaState | Sept. 28, 2026 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyEmergency declarationStanding duty | 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 | |