Manitoba hearing conservation requirements are set by Manitoba Workplace Safety and Health Branch (within Labour and Immigration) under Workplace Safety and Health Act (C.C.S.M. c. W210) and implemented through Workplace Safety and Health Regulation (M.R. 217/2006), Part 12 (Hearing Conservation and Noise Control). There is no single “Canadian OSHA” — provincially regulated workplaces in Manitoba (the great majority of employers in the province) follow this provincial regulation rather than the federal Canada Occupational Health and Safety Regulations (COHSR). This guide is the Manitoba expansion of our Canada vs. Federal OSHA hearing conservation pillar, covering the action level, exposure limit, audiometric testing requirements, HPD and measurement standards, key noise-exposed industries, and penalty structure for Manitoba employers.
Soundtrace delivers audiometric testing and noise monitoring tooling for employers operating in Canada and the United States — ANSI S3.1 / CSA Z107.56-aligned and supervised by a licensed audiologist. Contact us about Manitoba operations.
Manitoba OH&S Overview
Occupational health and safety in Manitoba is administered by Manitoba Workplace Safety and Health Branch (within Labour and Immigration) under Workplace Safety and Health Act (C.C.S.M. c. W210). Noise and hearing conservation requirements are set out in Workplace Safety and Health Regulation (M.R. 217/2006), Part 12 (Hearing Conservation and Noise Control). Unlike the US state-plan system — where state programs adopt federal OSHA standards by reference — Manitoba’s noise regulation is a standalone provincial instrument that the regulator drafted and enforces directly. There is no federal Canadian floor that applies to provincially regulated workplaces in Manitoba.
Federally regulated workplaces in Manitoba — interprovincial trucking, rail, air, marine, banking, telecommunications, federal Crown corporations — follow the federal COHSR Part VII noise rule, not the provincial regulation. Everyone else — manufacturing, construction, healthcare, retail, agriculture, provincial Crown corporations — follows the provincial rule covered in this guide.
Hearing Conservation Requirements in Manitoba
| Requirement | Manitoba |
|---|---|
| Regulator | Manitoba Workplace Safety and Health Branch (within Labour and Immigration) |
| Governing statute | Workplace Safety and Health Act (C.C.S.M. c. W210) |
| Noise regulation | Workplace Safety and Health Regulation (M.R. 217/2006), Part 12 (Hearing Conservation and Noise Control) |
| Action level | 80 dBA Lex,8 (noise assessment trigger under s. 12.3) |
| Exposure limit | 85 dBA Lex,8 (s. 12.5) |
| Exchange rate | 3 dB (equal-energy) |
| Audiometric testing | Mandatory — baseline within 70 days, every 2 years thereafter (s. 12.7); 80 dBA trigger |
| HPD standard | CSA Z94.2 (current edition) — referenced via s. 12.9 |
| Noise measurement standard | CSA Z107.56 (current edition) |
Audiometric testing. Audiometric testing is mandated by WSH Regulation s. 12.7: workers exposed at or above 80 dBA Lex,8 must be offered audiometric testing within 70 days of first exposure (baseline), with follow-up tests at least every 2 years thereafter. Manitoba's 80 dBA testing threshold is the lowest in Canada — meaningfully below the 85 dBA threshold used by most other jurisdictions.
Hearing protection. Where exposures cannot be reduced below the exposure limit through engineering or administrative controls, the employer must provide hearing protection devices selected and used in accordance with CSA Z94.2 (current edition) — referenced via s. 12.9. CSA Z94.2 uses an A-B-C classification (Class A is the highest-attenuation, Class C is the lowest) and provides selection guidance based on measured exposure — this is the Canadian counterpart to the US NRR derating framework. See: audiometric testing for employers.
Noise measurement. Noise surveys and dosimetry must be conducted in accordance with CSA Z107.56 (current edition), which specifies measurement strategy, instrument calibration, and reporting requirements for occupational noise exposure assessments.
Manitoba's 80 dBA assessment trigger and 80 dBA audiometric testing trigger are the most protective in Canada. Employers operating in Manitoba should run noise assessments at the 80 dBA threshold (not 85) and enroll workers in audiometric testing at the 80 dBA threshold — this is materially broader than the 85 dBA programs that satisfy most other Canadian jurisdictions and US OSHA.
Jurisdiction and Coverage
The provincial noise regulation covers private-sector employers and provincial/municipal government employers operating in Manitoba. Federally regulated employers in Manitoba are covered by COHSR Part VII (the federal rule). Mining is generally covered by the provincial OH&S regime with sector-specific noise provisions in some jurisdictions; offshore oil and gas is regulated by joint federal-provincial offshore safety boards where applicable.
| Employer Type | Governing Regulator | Noise Rule |
|---|---|---|
| Private sector in Manitoba | Manitoba Workplace Safety and Health Branch | Workplace Safety and Health Regulation (M.R. 217/2006) |
| Provincial/municipal government | Manitoba Workplace Safety and Health Branch | Workplace Safety and Health Regulation (M.R. 217/2006) |
| Federally regulated (interprovincial transport, banking, telecom, federal Crown) | Employment and Social Development Canada / Labour Program | COHSR Part VII (SOR/86-304) |
| Cross-border US operations | US OSHA or state-plan OSHA | 29 CFR 1910.95 |
Enforcement and Penalties
Under the WSH Act s. 55, an individual convicted of an offence may be fined up to CAD $250,000 and/or imprisoned for up to 2 years; a corporation may be fined up to CAD $500,000. Administrative penalties up to CAD $5,000 per day per contravention may be issued under s. 53.1.
For comparison with US enforcement, see our OSHA hearing conservation violations and penalties guide. Canadian penalty maximums are denominated in Canadian dollars and are typically higher per-offence than US OSHA maximums — though Canadian regulators generally pursue prosecution less frequently than US OSHA pursues citations, relying more heavily on administrative orders, stop-work orders, and experience-rated WCB premium adjustments.
Key Noise-Exposed Industries in Manitoba
The following sectors in Manitoba consistently generate occupational noise exposures that trigger the hearing conservation program: aerospace manufacturing (Winnipeg), agriculture and food processing, mining (Flin Flon, Thompson — nickel and zinc), printing and publishing, and transportation. Employers in these sectors should prioritize noise assessment by job classification under CSA Z107.56 (current edition) to identify which workers exceed the action level.
Building a Compliant HCP in Manitoba
A hearing conservation program that satisfies Workplace Safety and Health Regulation (M.R. 217/2006) in Manitoba should follow CSA Z1007 (Hearing Loss Prevention Program Management) as the program-design framework. The core elements:
- Noise assessment under CSA Z107.56 (current edition) — identify which workers exceed 80 dBA Lex,8 (noise assessment trigger under s. 12.3).
- Engineering and administrative controls first, where reasonably practicable — HPDs are a control of last resort, not the primary control.
- Hearing protection devices selected and used per CSA Z94.2 (current edition) — referenced via s. 12.9, with selection documented against measured exposure.
- Audiometric testing per the regulator’s expectations — mandatory — baseline within 70 days, every 2 years thereafter (s. 12.7); 80 dba trigger.
- Worker education on noise hazards, control measures, HPD selection and use, and the audiometric program.
- Recordkeeping covering noise assessments, HPD program documentation, and audiometric records retained for the working life of the worker (per CSA Z1007).
- Program review at least annually and whenever workplace conditions change materially.
For cross-border employers, a CSA Z1007-aligned program built for Manitoba will generally also satisfy US OSHA 29 CFR 1910.95, since Z1007’s audiometric and training elements are stricter than the US OSHA floor.
- Workplace Safety and Health Act (C.C.S.M. c. W210)
- Workplace Safety and Health Regulation (M.R. 217/2006), Part 12 (Hearing Conservation and Noise Control)
- Canada Occupational Health and Safety Regulations (SOR/86-304) — Part VII Levels of Sound (federal comparison)
- CSA Z94.2 — Hearing Protection Devices: Performance, Selection, Care, and Use
- CSA Z107.56 — Measurement of Noise Exposure
- CSA Z1007 — Hearing Loss Prevention Program Management
Hearing conservation tooling for Manitoba employers
Soundtrace provides audiometric testing and noise monitoring tools supervised by a licensed audiologist, with 30-year cloud record retention. Contact us about Manitoba operations and how our program documentation aligns with CSA Z1007, Z94.2, and Z107.56.
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The action level in Manitoba is 80 dBA Lex,8 (noise assessment trigger under s. 12.3), with an exposure limit of 85 dBA Lex,8 (s. 12.5) and a 3 dB (equal-energy) exchange rate. Once a worker is exposed at or above the action level, the employer must implement a hearing conservation program covering noise assessment, engineering and administrative controls, hearing protection devices, worker education, and audiometric testing as required by the regulation.
Audiometric testing is mandated by WSH Regulation s. 12.7: workers exposed at or above 80 dBA Lex,8 must be offered audiometric testing within 70 days of first exposure (baseline), with follow-up tests at least every 2 years thereafter. Manitoba's 80 dBA testing threshold is the lowest in Canada — meaningfully below the 85 dBA threshold used by most other jurisdictions.
Under the WSH Act s. 55, an individual convicted of an offence may be fined up to CAD $250,000 and/or imprisoned for up to 2 years; a corporation may be fined up to CAD $500,000. Administrative penalties up to CAD $5,000 per day per contravention may be issued under s. 53.1.
Manitoba regulators cite CSA Z94.2 (Hearing Protection Devices) for HPD selection and CSA Z107.56 (Measurement of Noise Exposure) for noise surveys and dosimetry. CSA Z1007 (Hearing Loss Prevention Program Management) is the recognized program-management standard and is treated as the standard of care for HCP design across Canadian jurisdictions.