MOSH — Maryland's OSHA-approved State Plan administered by the Maryland Department of Labor, Maryland Occupational Safety and Health (MOSH) — enforces hearing conservation requirements under Maryland Code, Labor and Employment Article, Title 5. Like all State Plan states, Maryland must maintain occupational safety standards at least as effective as federal OSHA. For hearing conservation, MOSH adopts 29 CFR 1910.95 by reference, meaning the substantive requirements are identical to federal OSHA. This guide covers what Maryland employers need to know about operating a compliant hearing conservation program under MOSH's enforcement framework.
Soundtrace delivers audiometric testing and noise monitoring for employers across all 50 states including Maryland — ANSI S3.1-compliant and supervised by a licensed audiologist.
MOSH Overview
MOSH is an OSHA-approved State Plan that allows Maryland to operate its own occupational safety and health program in place of federal OSHA enforcement. State Plans must be at least as effective as federal OSHA. MOSH is administered by the Maryland Department of Labor, Maryland Occupational Safety and Health (MOSH) under Maryland Code, Labor and Employment Article, Title 5.
Maryland has a significant federal government presence, and some employers operate on federal property where MOSH jurisdiction may not apply and federal OSHA instead governs. Employers with mixed federal/private sector operations should confirm which agency has jurisdiction over each worksite.
Hearing Conservation Requirements in Maryland
MOSH adopts federal OSHA standards by reference. No additional hearing conservation requirements. Maryland's industries include food processing, chemicals, and defense manufacturing. MOSH covers private sector and state/local government employees; federal OSHA retains jurisdiction over federal government worksites.
The substantive hearing conservation requirements under MOSH are identical to federal 1910.95: the 85 dBA action level triggers the full six-element program, the PEL is 90 dBA, baseline audiograms must be established within 6 months of enrollment, annual audiograms are required within 12 months of the previous test, and STS detection triggers a specific chain of employer actions. See: audiometric testing for employers: complete OSHA guide.
Jurisdiction and Coverage
MOSH enforces 29 CFR 1910.95 for both private sector employers and state/local government employees. Federal OSHA retains jurisdiction over federal government employees and contractors working in Maryland.
| Employer Type | Governing Agency | Hearing Conservation Standard |
|---|---|---|
| Private sector employers in Maryland | MOSH | 29 CFR 1910.95 |
| State and local government employers | MOSH | 29 CFR 1910.95 (adopted by reference) |
| Federal government employees | Federal OSHA | 29 CFR 1910.95 |
| Mining operations (underground/surface) | MSHA | 30 CFR Part 62 |
Enforcement and Penalties
MOSH penalties: Serious up to $15,625. Willful/repeated up to $156,259.
Penalty amounts are adjusted annually for inflation. MOSH enforcement priorities may differ from federal OSHA Area Office priorities — Maryland's dominant industries often drive local enforcement focus. Employers subject to MOSH enforcement are not subject to concurrent federal OSHA jurisdiction for the same violations.
For a complete overview of OSHA hearing conservation citation patterns and penalty structures, see: OSHA hearing conservation violations and penalties.
Key Noise-Exposed Industries in Maryland
The following industries in Maryland have significant occupational noise exposure profiles relevant to hearing conservation compliance: food processing, defense manufacturing, chemicals, healthcare, construction. Employers in these sectors should prioritize noise monitoring by job classification to confirm which workers meet the 85 dBA action level threshold.
Building a Compliant HCP in Maryland
The six required elements of an OSHA 1910.95 hearing conservation program apply identically in Maryland: noise monitoring, audiometric testing, hearing protection devices, annual training, recordkeeping, and access to information. There are no Maryland-specific additions to these requirements under MOSH.
The most common compliance gaps found during MOSH inspections mirror federal OSHA patterns nationwide: late or missing baseline audiograms, annual audiogram schedule failures, and inadequate HPD variety. See: OSHA HCP inspection guide.
Compliant audiometric testing for Maryland employers
Soundtrace delivers OSHA-compliant in-house audiometric testing for employers in Maryland and across all 50 states — supervised by a licensed audiologist, ANSI S3.1-compliant, with 30-year cloud record retention.
Get a Free Quote Book a demo →Frequently Asked Questions
MOSH is Maryland's OSHA-approved State Plan. It adopts federal 29 CFR 1910.95 by reference, meaning the substantive hearing conservation requirements are identical to federal OSHA. MOSH enforces 1910.95 for both private sector employers and state/local government employees.
Yes. The hearing conservation requirements — the 85 dBA action level, six required program elements, baseline and annual audiograms, STS detection and employer response requirements — are identical to federal 1910.95. The only difference is that MOSH (rather than a federal OSHA Area Office) conducts inspections and issues citations for private sector employers in Maryland.
MOSH penalties: Serious up to $15,625. Willful/repeated up to $156,259.
Underground and surface mining operations in Maryland fall under MSHA (30 CFR Part 62), not MOSH or federal OSHA. Surface facilities at mining operations that are not engaged in mining activities may fall under MOSH/"OSHA" jurisdiction. Employers in the mining sector should confirm jurisdiction for each worksite.