Working as an HVAC contractor in Tennessee requires understanding the state's licensing rules, application process, and regulatory authority.

This guide explains whether Tennessee requires an HVAC license, the license types available, the governing agency, and how contractors can apply.

Tennessee HVAC License Requirements

At a Glance

Requirement	Details
State	Tennessee
License Required	Yes
Licensing Authority	Tennessee Board for Licensing Contractors
Licensing Model	Statewide plus local
Last Verified	2026-03-10

Does Tennessee Require a State HVAC License?

Yes, for covered contractor activity under Tennessee contractor licensing thresholds and classification rules. Official board guidance states a license is required before bidding/contracting for covered monetary thresholds, with trade classifications that include mechanical/HVAC-related scopes. (Source 1, Source 2, Source 3)

Who Regulates HVAC Licensing in Tennessee?

• Agency: Tennessee Board for Licensing Contractors
• Authority type: board
• Website: https://www.tn.gov/commerce/regboards/contractors.html
• Phone: Unverified
• Email: Unverified
• Notes: Board pages publish license requirements, classifications, exam rules, and reciprocity/trade exam waiver pathways.

License Types

CMC / CMC-A Mechanical Contractor Classifications

• Scope of work: Mechanical/HVAC-related contractor classifications in Tennessee board classification resources.
• Who needs it: Contractors performing covered mechanical/HVAC contracting work above state thresholds.
• Key limitations: Monetary thresholds and classification scope limits apply.
• Citation(s): Source 2, Source 3

Home Improvement / Limited-License Pathways (Scope-Dependent)

• Scope of work: Limited project-value pathways governed by Tennessee program rules.
• Who needs it: Contractors operating in lower-threshold work categories where applicable.
• Key limitations: Does not replace full contractor license when threshold/classification requirements apply.
• Citation(s): Source 2, Source 4

Experience Requirements

• Minimum experience: Unverified in this pass (board application packet should be reviewed for current experience standards by classification).
• Education substitutions: Unverified
• Apprenticeship pathway: Unverified
• Documented proof required: Board materials require financial and experience documentation in application process.
• Exceptions: Threshold-based exemptions/alternative pathways exist in board guidance.
• Citation(s): Source 2, Source 4

Exam Requirements

• Exam required: Yes (classification/business-and-law requirements apply by pathway)
• Trade exam: Yes (trade exam required unless waived under official reciprocity/trade-exam-waiver rules)
• Business/law exam: Yes
• Exam provider: PSI (per board requirements page)
• Passing score: Unverified
• Retake policy: Unverified
• Citation(s): Source 2, Source 4

Application Requirements

• Application form/link: Board application and license requirements pages.
• Application fee: $250 application fee (official board requirements page).
• Background check: Unverified
• Insurance requirements: Unverified
• Bond requirements: Unverified
• Financial/responsibility requirements: Financial statement requirements are published by board resources.
• Processing time (if published): Approximately 4-6 weeks after complete filing (board guidance).
• Citation(s): Source 2, Source 4

Renewal Requirements

• Renewal cycle: 2 years (license issued for two years per board guidance).
• Renewal fee: Unverified
• Continuing education: Unverified
• Late renewal/reinstatement: Unverified
• Citation(s): Source 2

Local Licensing Rules

Tennessee state contractor licensing applies with local permit/inspection overlays. This table is baseline-only and not exhaustive.

Key Jurisdictions to Check

Jurisdiction	HVAC License / Registration Status	Official Link	Notes
Nashville (largest city and capital)	Unverified (Jurisdiction page verified)	https://www.nashville.gov/departments/codes/permits-and-inspections	Local permits/inspections are published; verify any local registration overlays before work.
Memphis	Unverified (Jurisdiction page verified)	https://www.memphistn.gov/government/development/	City development/permitting resources are published; HVAC-specific local credential details unresolved in this pass.
Knoxville	Unverified (Jurisdiction page verified)	https://www.knoxvilletn.gov/government/city_departments_offices/plans_review_inspections	Official plans review/inspection resources are published; verify local contractor requirements directly.

Reciprocity

• Reciprocity available: Yes (trade exam waiver/reciprocity pathways are published by board)
• With which states/credential pathways: State list is published in board reciprocity/trade-exam-waiver guidance.
• Conditions/limits: Business and law examination and other conditions may still apply.
• Citation(s): Source 5

Important Notes

• Tennessee contractor licensure is threshold- and classification-dependent.
• Application fee and processing timing are verified from official board guidance; other operational fields remain Unverified in this pass.
• Confirm local permit requirements even when state licensure applies.

Tennessee HVAC License FAQ

Do you need an HVAC license in Tennessee?

Yes. Tennessee requires a state-issued credential, registration, or licensing pathway for at least some contractor-level HVAC work. Review the sections above for license types and application requirements.

Who regulates HVAC licensing in Tennessee?

HVAC licensing in Tennessee is regulated by Tennessee Board for Licensing Contractors and, where applicable, local jurisdictions or related trade authorities.

What types of HVAC licenses exist in Tennessee?

Tennessee uses one or more license or registration types depending on project scope, system type, or trade classification. See the License Types section above for details.

How long does it take to get an HVAC license in Tennessee?

Processing times vary in Tennessee and may depend on application review, exam scheduling, documentation, and local jurisdiction requirements. Review official sources before applying.

Does Tennessee offer HVAC license reciprocity?

Tennessee publishes reciprocity or reciprocal recognition in at least some cases. Review the Reciprocity section above and confirm eligibility directly with the licensing authority.

HVAC Licensing in Nearby States

• Kentucky HVAC License Requirements
• Georgia HVAC License Requirements
• Alabama HVAC License Requirements
• North Carolina HVAC License Requirements

Sources

1. Tennessee Board for Licensing Contractors - Board Home - https://www.tn.gov/commerce/regboards/contractors.html (Accessed: 2026-03-10)
2. Tennessee Board for Licensing Contractors - License Requirements - https://www.tn.gov/commerce/regboards/contractors/license-requirements.html (Accessed: 2026-03-10)
3. Tennessee Board for Licensing Contractors - License Classifications - https://www.tn.gov/commerce/regboards/contractors/license-classifications.html (Accessed: 2026-03-10)
4. Tennessee Board for Licensing Contractors - Application Checklist / Forms - https://www.tn.gov/commerce/regboards/contractors/applications.html (Accessed: 2026-03-10)
5. Tennessee Board for Licensing Contractors - Reciprocity and Trade Exam Waivers - https://www.tn.gov/commerce/regboards/contractors/license-requirements/reciprocity.html (Accessed: 2026-03-10)
6. Metropolitan Government of Nashville and Davidson County - Permits and Inspections - https://www.nashville.gov/departments/codes/permits-and-inspections (Accessed: 2026-03-10)
7. City of Memphis - Division of Planning and Development - https://www.memphistn.gov/government/development/ (Accessed: 2026-03-10)
8. City of Knoxville - Plans Review and Inspections - https://www.knoxvilletn.gov/government/city_departments_offices/plans_review_inspections (Accessed: 2026-03-10)

Disclaimer

Requirements can change. Confirm current licensing rules with the official authority before applying, testing, bidding, contracting, or performing HVAC work.