Registered fire sprinkler fitter apprentices by county, open recruitment windows where the state publishes them, and how the apprentice tier fits Massachusetts's licence ladder. Updated nightly.
Massachusetts has 33 registered fire sprinkler fitter apprentices in active status (fiscal year 2025, DOL RAPIDS), placed in 8 counties, 0.0 per 10,000 residents. That is 0.2 apprentices for every 100 employed fire sprinkler fitters in the state, the rate at which the trade is training its own replacements.
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Registered fire sprinkler fitter apprentices by county of the apprentice, largest first. Each county links to its fire sprinkler fitters market page.
| County | Apprentices | Share | Per 10k residents |
|---|---|---|---|
| Hampden County | 12 | 36% | 0.3 |
| Worcester County | 9 | 27% | 0.1 |
| Middlesex County | 5 | 15% | 0.0 |
| Essex County | 3 | 9% | 0.0 |
| Bristol County | 1 | 3% | 0.0 |
| Hampshire County | 1 | 3% | 0.1 |
| Norfolk County | 1 | 3% | 0.0 |
| Plymouth County | 1 | 3% | 0.0 |
Source: DOL RAPIDS apprenticeship FY2025, active status, county-coded; as of December 31, 2025.
The Massachusetts register ATI reads carries no separate apprentice-tier credential for fire sprinkler fitters; its ladder for this trade starts at Journeyman (1,626 active records, read September 16, 2026). Registered apprentices in the county table above are counted from the federal apprenticeship system, not from the licence register.
Credential types the Massachusetts Division of Occupational Licensure, Office of Public Safety and Inspections, Bureau of Pipefitters, Refrigeration Technicians, and Sprinkler Fitters issues for this trade: Apprentice Sprinkler Fitter License, Journeyman Sprinkler Fitter License, Fire Protection Sprinkler Fitter Contractor License. See how to get a fire sprinkler fitter license in Massachusetts for hours, exams and renewal.
Sources: registered apprentices: DOL RAPIDS apprenticeship FY2025, active status, as of December 31, 2025; employment: BLS QCEW construction x OEWS occupation share (estimate); licence tiers: Massachusetts register read September 16, 2026; population: U.S. Census 2023 estimates.
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