View the Massachusetts guidelines and procedures for all construction sites and workers at all public work here: https://www.mass.gov/covid-19-guidelines-and-procedures-for-all-construction-sites-and-workers-at-all-public-work
These guidelines and procedures must be implemented at all times on all construction sites. They include:
COVID-19 Employee Health, protection, guidance and prevention
Supplemental Guidelines for Construction Sites
Enforcement of the COVID-19 Safety Guidelines and Procedures for Construction Sites