Workplace Safety Help, Training, and Advocacy in Massachusetts
MassCOSH helps workers, unions, and communities across Massachusetts access workplace safety training, report hazards, and improve working conditions.
Trusted by workers across Massachusetts
Union-supported training programs
Free & accessible resources

News & events
Updates from MassCOSH
Featured stories, trainings, and releases—Massachusetts workers and campaigns in plain language.

2026 Memorial - Worcester, MA
Workers’ Memorial Day is not only about remembrance. It is also about community, responsibility, and action. It is about making sure that fewer families experience this grief in the future. It is about affirming that worker health and safety must remain a shared priority across every region, every sector, and every community.

Construction Worker Dies from Fall at Salem Worksite
According to media reports, the 34-year-old construction worker was working on the rooftop of a five-story building in Salem on Friday, August 8, around 12:11pm, when he tragically fell to his death.
How we help
How MassCOSH helps workers stay safe
A straightforward path: reach out, get support, and build safer conditions—training, advocacy, and technical help for workers across Massachusetts.
Contact MassCOSH for Workplace Safety Help
We Assess Workplace Hazards and Risks
We Provide Training and Advocacy Support
We Help Improve Workplace Safety Conditions
Help us make a difference
Your support fuels training, advocacy, and organizing so workers can come home safe.
Programs
Training, outreach & worker support
Core services—education, technical assistance, and community programs—with links to full program pages in the CMS.
By the numbers
Our impact in Massachusetts
Training, workplace support, and years of organizing with workers—replace headline stats with verified figures from MassCOSH.
10,000+
500+
50+ Years
Impact
Workers & communities in their own words
Short quotes from workers and allies—real outcomes from training, organizing, and workplace support across Massachusetts.

COVID Memorial Day, March 2023
Jennifer Ritz Sullivan and MassCOSH testifying at MA State House advocating for declaring the first Monday in March as National Covid Memorial Day.

Annual Event 2018 Collage highlighting the MassCOSH fallen worker quilt, made by the mother of one of our fallen workers, the first quilt she ever made.
As a result of Robert Higgins and Kelvin Mattocks, employees of Atlantic Drain Service Co., killed on Oct. 21, 2016, when the trench in which they were working collapsed and filled with water, we were able to secure an executive order in Boston preventing contractors from obtaining permits if they have outstanding OSHA violations.
Trainings & events
Upcoming events & trainings
Workshops, community sessions, and registration-ready listings—Massachusetts dates and locations pulled from the Events collection.
Frequently Asked Questions About Workplace Safety in Massachusetts
What does MassCOSH do?
MassCOSH is the Massachusetts Coalition for Occupational Safety and Health—a nonprofit that helps workers, unions, and communities with workplace safety through training, technical help, advocacy, and organizing. We support workers who want to understand hazards, exercise their rights, and improve conditions on the job.
How can I report an unsafe workplace in Massachusetts?
For serious hazards, workers can file a complaint with OSHA (federal) or, where it applies, Massachusetts OSHA. MassCOSH can help you think through next steps, document concerns, and find the right resource—we do not replace government enforcement. Start with Get Help if you want to talk through options.
Is workplace safety training free?
Many MassCOSH trainings and workshops are free or low-cost for workers and community members; pricing and eligibility vary by session. Check each event listing for details.






