Governor Charles D. Baker, Executive Order No. 595, Requiring COVID-19 Vaccination for Executive Department Employees (Aug. 19, 2021) (Ex. ECO-B-130)
Ballotpedia (secondary source), Ballotpedia, 'State employee vaccine requirements during the coronavirus (COVID-19) pandemic, 2021-2023' (Dec. 31, 2021) (Ex. ECO-B-108)
