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March 17, 2023

Maryland Occupational Hearing Loss Workers' Compensation Guide

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

Maryland carries one of the most significant industrial hearing loss legacies in the United States. A former steel plant in the Baltimore area — once the world's largest steel plant, employing over 30,000 workers — created decades of extreme noise exposure whose claims are still being filed today. The Port of Baltimore, major defense contracting in the DC corridor, and significant manufacturing in the Baltimore metro add to Maryland's ongoing occupational hearing loss exposure. Soundtrace helps Maryland employers build and maintain exactly that program — so when a claim arrives, the records are already there.

Key Facts: Maryland

Governing statute: Maryland Workers' Compensation Act, Md. Code, Labor & Employment §9-101 et seq.
Administering body: Maryland Workers' Compensation Commission (WCC)
Filing deadline: 60 days from date of disablement (notify employer); 2 years from date of disablement to file claim
Compensation basis: Scheduled permanent partial disability under Md. Code §9-627; total bilateral hearing loss: 125 weeks
Notable: Maryland requires employee to notify employer within 60 days of date of disablement; failure to notify can bar claim

Workers' compensation system overview: Maryland

System ElementMaryland Details
Governing StatuteMaryland Workers' Compensation Act, Md. Code, Labor & Employment §9-101 et seq.; §9-627 (scheduled losses)
Administering BodyMaryland Workers' Compensation Commission (WCC)
CoveragePrivate insurance required + Chesapeake Employers' Insurance + self-insured
OSHA Noise Level85 dBA TWA (federal OSHA 1910.95; Maryland OSHA (MOSH) enforces under state plan)
Employer Notice60 days from date of disablement — failure to notify may bar claim
Filing Deadline2 years from date of disablement to file formal claim with WCC
Scheduled: Both Ears125 weeks (proportionate for partial losses)
AWW Rate66⅔% of average weekly wage, subject to state maximum

Maryland high-noise industries

  • Steel manufacturing legacy (the former Sparrows Point facility — major legacy claims)
  • Port of Baltimore (stevedores, equipment operators, warehouse)
  • Defense contracting (NSA, Ft. Meade, Aberdeen Proving Ground, Patuxent River NAS)
  • Construction
  • Manufacturing (Baltimore metro corridor)
  • Healthcare (hospital equipment exposure)
🔊 Typical Peak Noise Exposure by Industry Sector (%TWA days exceeding 85 dBA)
Steel Legacy (Sparrows Pt)
 
95%
Port of Baltimore
 
84%
Defense Contracting
 
80%
Construction
 
79%
Manufacturing
 
77%

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

~210,000Workers in high-noise industries
60 daysEmployer notice requirement
125 weeksMax scheduled (bilateral)

How occupational hearing loss claims work in Maryland

Noise-induced hearing loss (NIHL) is classified as an occupational disease in Maryland.

  • 60-day notice requirement: Maryland uniquely requires the worker to notify the employer within 60 days of the date of disablement.
  • 2-year filing deadline: Workers must file a formal claim with the WCC within 2 years of the date of disablement.
  • Causation disputes: Audiometric baseline records are the primary defense.
  • Legacy claims: Claims from former steel industry workers are still actively filed decades after the primary exposure period.
Maryland's 60-Day Employer Notice: A Critical Procedural Defense

Maryland's 60-day employer notice requirement is a significant procedural defense. If a worker fails to notify the employer of their occupational hearing loss diagnosis within 60 days of the date of disablement, and the employer cannot show it had actual knowledge of the condition, the claim may be barred. Employers should document all communications with employees about hearing health concerns.

Claim timeline: from exposure to award in Maryland

Noise exposure occurs

Worker exposed at Maryland facility. MOSH (Maryland OSHA) enforces noise standards under state plan.

Disablement date established

Maryland's 60-day notice requirement runs from the 'date of disablement' — when the worker first became disabled from the occupational disease.

Employer notified within 60 days

Critical: Maryland requires the worker to notify the employer of occupational disease within 60 days of the date of disablement. Failure to provide timely notice may bar the claim unless the employer had actual knowledge.

Claim filed with Maryland WCC

Worker files claim with the Maryland Workers' Compensation Commission within 2 years of the date of disablement.

Medical examination and audiometry

IME with ANSI-compliant audiometry. Maryland WCC uses scheduled loss under §9-627.

Commissioner hearing and award

WCC Commissioner issues award based on degree of binaural hearing loss and Maryland's scheduled benefit.

Compensation schedule and benefit calculation

Maryland compensates occupational hearing loss as a scheduled permanent partial disability. Total bilateral loss = 125 weeks at 66⅔% AWW. Partial losses are proportionate.

Loss TypeBenefit BasisNotes
Total loss, one earPer Maryland scheduleVerify current rate with WCC
Total loss, both ears125 weeks at 66⅔% AWWSubject to state maximum weekly rate
Partial loss% of 125 weeks% of binaural hearing loss × 125 weeks
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

State workers' compensation statutes were written before landmark research changed how medicine understands hearing loss. Today's claims landscape is just the beginning.

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

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

Why this matters for Maryland employers: Maryland's former steel industry workers are now in their 60s, 70s, and 80s — a cohort carrying decades of extreme noise exposure. As research links hearing loss to dementia and cardiovascular disease, the total downstream health burden of this industrial history is still unfolding. This is precisely the problem Soundtrace was built to solve.

Research FindingSourceImplication for MD 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 dementia burden among Maryland's 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 Maryland

The most effective thing a Maryland employer can do — for worker health and for legal protection — is maintain a complete, documented hearing conservation program. Soundtrace provides Maryland 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 records well beyond the statute of limitations.
  • 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.
  • 60-day notice tracking: Document all communications with employees about hearing health. Soundtrace's audit trail timestamps every interaction.
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. Maryland employers who use Soundtrace arrive at a claim with organized, complete records rather than scrambling to reconstruct them.


Frequently asked questions

What is Maryland's 60-day employer notice requirement?

Maryland Code §9-704 requires that an employee with an occupational disease notify the employer within 60 days of the date of disablement. For occupational hearing loss, the 'date of disablement' is generally when the worker first experiences significant disability and connects it to their work. Failure to provide timely notice can bar the claim unless the employer had actual knowledge of the condition.

How does the Sparrows Point legacy affect Maryland employers today?

A former steel plant in the Baltimore area was once the world's largest steel plant, employing over 30,000 workers at peak operation. Thousands of former workers are still filing hearing loss claims. Successor employers and companies that acquired assets from the facility may face legacy liability. Maryland employers in the Baltimore industrial corridor should be aware that steel industry hearing loss claims are still actively filed decades after the primary exposure period.

How does Maryland handle Port of Baltimore hearing loss claims?

The Port of Baltimore is one of the busiest ports on the East Coast. Longshoremen, crane operators, and terminal workers face significant noise exposure. Workers covered under the Longshore and Harbor Workers' Compensation Act (LHWCA) file federal claims, while workers in non-maritime roles may be covered under Maryland WC. The distinction between LHWCA and state WC coverage is frequently contested for port workers.

Does Maryland workers' comp cover hearing loss from defense contractor work?

Yes. Private-sector defense contractors working at Maryland installations are subject to Maryland WC for work-related conditions including hearing loss. Federal employees at these facilities are covered under FECA. The distinction between federal employee and contractor status is critical for coverage determination.

Build the program. Build the record.

Soundtrace gives Maryland 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.

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