| Ex. ECO-C-012 | COVID-19 Order No. 45Order Requiring Travelers Arriving in Massachusetts to Quarantine or Produce a Negative COVID-19 Test Result | Governor Charles D. Baker | MassachusettsState | July 24, 2020 | 2020 Q32020 Q42021 Q1 | Travel and quarantineQuarantine and isolation | Confirmed from a secondary source | |
| Ex. MA-025 | COVID-19 Order No. 45Order Instituting a Mandatory 14-Day Quarantine Requirement for Travelers Arriving in Massachusetts | Governor Charles D. Baker | MassachusettsState | July 24, 2020 | 2020 Q32020 Q42021 Q1 | Travel and quarantineWorkplace rulesQuarantine and isolation | Primary source read | |
| Ex. SEC-06-017 | COVID-19 Order No. 45Order Instituting a Mandatory 14-Day Quarantine Requirement for Travelers Arriving in Massachusetts | Governor Charles D. Baker | MassachusettsState | July 24, 2020 | 2020 Q32020 Q42021 Q1 | Travel and quarantineWorkplace rulesQuarantine and isolation | Primary source read | |
| Ex. MET-BOS-059 | Emergency Order Requiring Testing in Schools for In-Person LearningCity of Somerville Mayor and Board of Health Emergency Order Requiring Testing in Schools for In-Person Learning | Mayor Joseph A. Curtatone and the Board of Health | City of Somerville, MassachusettsCity | Nov. 2, 2020 | 2020 Q42021 Q12021 Q2 | Schools and child careWorkplace rulesQuarantine and isolation | Primary source read | |
| Ex. MA-064 | Order of the Commissioner of Public Health Regarding Control of COVID-19 in Long-Term Care FacilitiesLong-term care control order (admissions freeze authority) | Commissioner of Public Health Monica Bharel | MassachusettsState | Nov. 5, 2020 | 2020 Q42021 Q12021 Q22021 Q3 | Health care ordersWorkplace rulesQuarantine and isolation | Primary source read | |
| Ex. DUT-MA-001 | G.L. c. 17, s. 2AEmergency powers of the Commissioner of Public Health upon the Governor's declaration of an emergency detrimental to the public health | General Court (codified statute administered by the Commissioner of Public Health) | MassachusettsState | Sept. 28, 2026 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyEmergency declarationHealth care ordersQuarantine and isolationStanding duty | Primary source read | |
| Ex. DUT-MA-002 | G.L. c. 111, s. 6Power to define diseases deemed dangerous to public health; control and prevention | General Court (codified statute administered by the Department of Public Health) | MassachusettsState | Sept. 28, 2026 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyQuarantine and isolationStanding duty | Primary source read | |
| Ex. DUT-MA-005 | G.L. c. 111, s. 95Powers and duties of boards in cases of infectious diseases | General Court (codified statute; powers exercised by municipal boards of health) | MassachusettsState | Sept. 28, 2026 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyBusiness closureQuarantine and isolationStanding duty | Primary source read | |
| Ex. DUT-MA-006 | G.L. c. 111, s. 104Prevention of spread of infection; public notice; removal | General Court (codified statute; duties of selectmen and boards of health) | MassachusettsState | Sept. 28, 2026 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyQuarantine and isolationStanding duty | Primary source read | |
| Ex. DUT-MA-009 | 105 CMR 300.200Isolation and Quarantine Requirements | Department of Public Health (regulation under G.L. c. 111, ss. 6, 7 and 109 and related sections) | MassachusettsState | Sept. 28, 2026 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyQuarantine and isolationStanding duty | Primary source read | |
| Ex. DUT-MA-010 | 105 CMR 300.210Procedures for Isolation and Quarantine | Department of Public Health (regulation) | MassachusettsState | Sept. 28, 2026 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyQuarantine and isolationStanding duty | Primary source read | |
| Ex. DUT-MA-011 | 105 CMR 300.100Diseases Reportable to Local Boards of Health (COVID-19 listed) | Department of Public Health (regulation) | MassachusettsState | Sept. 28, 2026 | 2020 Q22020 Q32020 Q42021 Q12021 Q22021 Q3 | Standing dutyHealth care ordersQuarantine and isolationStanding duty | Primary source read | |