How-To Guides
How-To Guides
March 17, 2023

Massachusetts Occupational Hearing Loss Workers' Compensation Guide

Share article

Workers' Compensation·State Guide·14 min read·Soundtrace Team·Updated March 14, 2026

Massachusetts has the highest concentration of defense technology manufacturing per capita in the United States. Major defense technology employers and dozens of defense electronics firms employ tens of thousands of workers in environments where precision manufacturing, sonar systems assembly, and military electronics testing generate significant noise exposure. Massachusetts also carries a significant textile and manufacturing legacy from Fall River, New Bedford, and Worcester — generating long-latency hearing loss claims that are still being filed today. Soundtrace helps Massachusetts employers build and maintain exactly that program — so when a claim arrives, the records are already there.

Key Facts: Massachusetts

Governing statute: Massachusetts Workers' Compensation Act, M.G.L. c. 152
Administering body: Massachusetts Department of Industrial Accidents (DIA)
Filing deadline: 4 years from date of injury or date worker knew of work-related condition — one of the longer statutes in the US
Compensation basis: Permanent partial impairment (§36 specific injuries) for hearing loss; scheduled weekly benefits
Notable: Massachusetts has a 4-year statute of limitations — longer than most states; occupational disease treated as 'personal injury'

Workers' compensation system overview: Massachusetts

System ElementMassachusetts Details
Governing StatuteMassachusetts Workers' Compensation Act, M.G.L. c. 152; §36 (specific injuries including hearing)
Administering BodyMassachusetts Department of Industrial Accidents (DIA)
CoveragePrivate insurance required + Workers' Compensation Rating and Inspection Bureau + self-insured
OSHA Noise Level85 dBA TWA (federal OSHA 1910.95)
Filing Deadline4 years from date of injury or knowledge of work-relatedness — among the longer windows
Occupational Disease TreatmentTreated as 'personal injury' under M.G.L. c. 152 — same framework as traumatic injuries
§36 ScheduleHearing loss compensated under §36 specific injury schedule; lump-sum payment
Audiogram RequiredYes — ANSI-compliant audiometry

Massachusetts high-noise industries

  • Defense technology manufacturing (major defense technology employers and subcontractors)
  • Shipbuilding and repair (Navy Yard Charlestown legacy; New England shipbuilding legacy)
  • Fall River / New Bedford textile and fishing industry legacy
  • Port of Boston (cargo handling, maritime operations)
  • Construction (major Boston metro construction boom)
  • Healthcare (hospital equipment: MRI, sterilization equipment)
🔊 Typical Peak Noise Exposure by Industry Sector (%TWA days exceeding 85 dBA)
Defense Tech / Electronics
 
80%
Maritime / Port Operations
 
83%
Textile Legacy
 
78%
Construction
 
81%
Healthcare Equip.
 
70%

Source: NIOSH Industry & Occupation Noise Exposure data; Soundtrace analysis.

~180,000Workers in high-noise industries
4 yearsStatute of limitations (longer)
HighestDefense tech manufacturing per capita

How occupational hearing loss claims work in Massachusetts

Massachusetts treats occupational disease (including NIHL) as a 'personal injury' under M.G.L. c. 152.

  • 4-year statute of limitations: Massachusetts has one of the longer filing windows in the US.
  • Personal injury framework: Occupational disease uses the same WC framework as traumatic injuries.
  • §36 lump sum for permanent hearing loss: Permanent occupational hearing loss is compensated under the §36 specific injury schedule as a lump-sum payment.
Massachusetts's 4-Year Statute: A Longer Window

Massachusetts's 4-year statute of limitations is among the longer in the US. Workers have more time to connect their hearing loss to occupational exposure, meaning claims can arrive years after workers retire or change jobs. Massachusetts's strong employee-protective legal culture and the DIA conciliation/hearing process mean employers should maintain thorough records well beyond the 4-year window.

Claim timeline: from exposure to award in Massachusetts

Noise exposure occurs

Worker exposed at Massachusetts facility. Federal OSHA 1910.95 applies.

Occupational disease develops

Under Massachusetts law, occupational disease is treated as a 'personal injury' — the same legal framework applies as for traumatic injuries.

4-year filing window

Massachusetts has a 4-year statute from the date the worker knew or should have known the condition was work-related. One of the longer windows in the US.

Employee's Claim filed with DIA

Worker files Employee's Claim (Form 110) with the Massachusetts Department of Industrial Accidents.

Conciliation and hearing

DIA conducts conciliation; if unresolved, formal hearing before Administrative Judge.

§36 lump sum award

For permanent hearing loss, Massachusetts provides a lump-sum §36 award based on the degree of hearing impairment.

Compensation: the §36 schedule

Massachusetts compensates permanent occupational hearing loss under M.G.L. c. 152, §36, which provides lump-sum payments for specific permanent injuries.

Loss TypeBenefit BasisNotes
Total loss, one ear§36 lump sum (per schedule)Verify current §36 rates with DIA
Total loss, both ears§36 lump sum (per schedule)Proportionate for partial losses
Partial loss% of §36 lump sumBased on degree of permanent hearing impairment
Medical benefitsReasonable & necessaryIncludes hearing aids and audiological care

The future claims picture: what the research says

🔭 The Future Claims Picture: What the Research Tells Us

The Lancet Commission (2024) identified hearing loss as the single largest modifiable risk factor for dementia — a 37% increased risk of incident dementia across six cohort studies.

The ACHIEVE Trial (Johns Hopkins / The Lancet, 2023) found hearing intervention slowed cognitive decline by 48% over three years. Dr. Frank Lin: "Hearing loss is arguably the single largest risk factor for dementia."

Why this matters for Massachusetts employers: Massachusetts's defense technology workforce and Fall River/New Bedford textile legacy both represent cohorts with significant accumulated noise exposure. The 4-year statute means claims arrive on a longer delay. As the Lancet research links hearing loss to dementia and cardiovascular disease, the downstream health burden is still materializing. This is precisely the problem Soundtrace was built to solve.

Research FindingSourceImplication for MA Employers
37% increased dementia risk from hearing lossLancet Commission 2024Workers with occupational NIHL face elevated downstream dementia and disability risk
48% reduction in cognitive decline with interventionACHIEVE Trial, Johns Hopkins, 2023Early treatment through HCP programs reduces total health and disability costs
7% of dementia cases potentially preventableLancet Commission 2024Significant preventable burden among Massachusetts's defense and industrial workforce
19% reduction in cognitive decline with hearing aidsAustralian Longitudinal Study, 2024Employers enabling early treatment reduce long-term worker health costs
Hearing loss linked to cardiovascular disease, depressionMultiple studies, 2020–2025Co-morbid conditions add to total claims exposure over time

Employer defense: building a documented program in Massachusetts

The most effective thing a Massachusetts employer can do — for worker health and for legal protection — is maintain a complete, documented hearing conservation program. Soundtrace provides Massachusetts employers with the infrastructure to do exactly this: in-house audiometric testing, automated STS detection, digital record retention, HPD fit testing, and professional audiology oversight, all in one platform.

  • Noise monitoring records: Document all noise surveys, dosimetry, and area monitoring. Retain for at least 4 years beyond any worker's last exposure.
  • Baseline audiograms: ANSI-compliant baseline audiometry for all workers at or above 85 dBA TWA. Soundtrace establishes a defensible baseline from day one.
  • Annual audiograms: Annual testing with documented STS determinations. Soundtrace automates STS flagging.
  • HPD documentation: Selection records, fit testing, issuance logs, and training documentation. Soundtrace's fit testing verifies real-world attenuation.
  • Record retention: Massachusetts's 4-year SOL and strong employee-protective culture mean long-term record retention is especially important. Soundtrace stores records with a complete audit trail.
This Is Exactly What Soundtrace Does

Soundtrace was built to handle every element of OSHA 1910.95 compliance — in-house audiometric testing, automated STS detection, HPD fit testing, and digital recordkeeping with a full audit trail. Massachusetts employers who use Soundtrace arrive at a claim with organized, complete records rather than scrambling to reconstruct them.


Frequently asked questions

How does Massachusetts treat occupational disease for workers' compensation purposes?

Massachusetts Workers' Compensation Act treats occupational disease as a 'personal injury' under M.G.L. c. 152 — meaning the same benefit framework and procedural rules apply as for traumatic injuries. For hearing loss, this means the worker must show that the NIHL 'arose out of and in the course of employment' and constitutes a personal injury. The date of injury for gradually developing NIHL is generally when the worker first became disabled.

What is the Massachusetts §36 schedule for hearing loss?

M.G.L. c. 152, §36 provides lump-sum compensation for specific permanent injuries, including hearing loss. The schedule establishes a maximum number of weeks of compensation for total hearing loss in each ear, and partial losses are compensated proportionately. The lump-sum §36 payment is made in addition to any temporary disability benefits paid during the treatment period. Verify current §36 rates with the Massachusetts Department of Industrial Accidents.

How does the Fall River and New Bedford textile legacy affect Massachusetts employers?

Fall River and New Bedford were once the world's largest textile manufacturing centers, employing tens of thousands of workers in mills with extremely high noise environments. Although most mills closed decades ago, former workers are now in their 70s and 80s, and claims from this legacy are still being filed under Massachusetts's 4-year statute. Successor employers and companies that acquired mill assets may face complex liability questions.

Does Massachusetts workers' comp cover defense technology manufacturing noise?

Yes. Defense electronics manufacturing involves precision machining, sonar systems testing, radar assembly, and electronic warfare systems — some of which generate significant noise exposure. Former and current employees of defense technology manufacturers and their subcontractors throughout Massachusetts's Route 128 corridor are active filers of occupational hearing loss claims. Employers in this sector should maintain comprehensive OSHA 1910.95-compliant hearing conservation programs.

Build the program. Build the record.

Soundtrace gives Massachusetts employers in-house audiometric testing, automated STS tracking, HPD fit testing, and audit-ready records — everything needed to protect your workforce and defend your position when a claim arrives.

Get a Free QuoteRead our complete OSHA hearing conservation guide