Registered fire sprinkler fitter apprentices by county, open recruitment windows where the state publishes them, and how the apprentice tier fits Tennessee's licence ladder. Updated nightly.
Tennessee has 129 registered fire sprinkler fitter apprentices in active status (fiscal year 2025, DOL RAPIDS), placed in 37 counties, 0.2 per 10,000 residents. That is 1.3 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 |
|---|---|---|---|
| Montgomery County | 17 | 13% | 0.7 |
| Humphreys County | 14 | 11% | 7.3 |
| Knox County | 8 | 6% | 0.2 |
| Madison County | 8 | 6% | 0.8 |
| Davidson County | 6 | 5% | 0.1 |
| Grainger County | 6 | 5% | 2.4 |
| Henderson County | 6 | 5% | 2.1 |
| Robertson County | 6 | 5% | 0.8 |
| Sumner County | 6 | 5% | 0.3 |
| Hamilton County | 5 | 4% | 0.1 |
| Shelby County | 5 | 4% | 0.1 |
| Scott County | 4 | 3% | 1.8 |
| Wayne County | 4 | 3% | 2.5 |
| Tipton County | 3 | 2% | 0.5 |
| Benton County | 2 | 2% | 1.2 |
| 22 other counties | 29 | 22% |
Source: DOL RAPIDS apprenticeship FY2025, active status, county-coded; as of December 31, 2025.
The Tennessee register ATI reads carries no separate apprentice-tier credential for fire sprinkler fitters; its ladder for this trade starts at Journeyman (80 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 Tennessee State Fire Marshal's Office, Permits and Licenses Unit, Division of Fire Prevention, Department of Commerce and Insurance issues for this trade: Fire Protection Sprinkler System Contractor certificate of registration (firm), Responsible Managing Employee (RME) license (individual). See how to get a fire sprinkler fitter license in Tennessee 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: Tennessee register read September 16, 2026; population: U.S. Census 2023 estimates.
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