Verification record
License #83997
- Active
A/C Technician
A/C Technician · Expires October 12, 2026
- Expired
Apprentice Electrician
Apprentice Electrician · Expired March 12, 2026
Texas A/C Technician › Bosque County
Darrell W Krumnow
Krumnow, Darrell W
Darrell W Krumnow holds licenses across 2 Texas trades — A/C Technician and Apprentice Electrician under TDLR License #83997. The license is registered in Bosque County, Texas. Current status: active.
- Years in TDLR record
- 0
- TDLR trades held
- 2
- Tenure rank, A/C Technicians in Bosque
- #13
Disciplinary history
No disciplinary actions on record with TDLR.
Scope of work
What these licenses authorize
A/C Technician
An A/C Technician license authorizes a person to perform HVAC installation, alteration, and service work in Texas under the direct authority of a licensed HVAC Contractor. A Certified (CER) technician has passed the TDLR exam and accumulated verifiable field experience; a Registered (REG) technician is in the entry pathway. Neither status authorizes contracting for work independently — only a licensed contractor may bid and contract. Refrigerant handling additionally requires federal EPA Section 608 certification.
Apprentice Electrician
An Apprentice Electrician license authorizes the holder to perform electrical work in Texas under the direct supervision of a Journeyman or Master Electrician while accumulating the 8,000 hours required to test for the journeyman license. An apprentice may not work unsupervised, may not pull permits, and may not contract for work. The license is the entry point for an electrical career in Texas and is the most numerous electrical license type held statewide.
Source
Published from the Texas Department of Licensing & Regulation All Licenses dataset. Record last changed · last verified against TDLR .
licensed-tx is not affiliated with or endorsed by TDLR or the State of Texas, and is not a consumer reporting agency. This record is for informational purposes only — confirm current status directly with TDLR.
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Jeremy K Johnson
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Leslie R Kelley
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KYLE E Busby
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