
Boiler certificate of operation
Check whether a boiler's certificate is current and who inspects it.
Good to know: Since 15 June 2026 an expired certificate runs a daily late fee: $25, then $50, then $100 a day.
Texas · TDLR · 82 license types
739,394 active licenses across 82 license types, and about 43,878 expire every month. Find your license type, check renewal rules and exam pass rates, and get to the right official TDLR search.
Checking one person or business? Individual records live on TDLR. Open the official TDLR license search
Map: the 24 counties with the most active licenses. Harris County leads with 122,419.
Ranked by active licenses, with how many come up for renewal in the next 12 months.
#1Beauty
#2Electrical
#3Beauty
#4Beauty
#5A/C
#6Electrical
#7Beauty
#8Beauty
The 82 license types, grouped the way TDLR runs its programs.
Beauty and barbering21 types · 384,870 active
Electrical14 types · 247,589 active
Air conditioning3 types · 60,016 active
Vehicles and towing8 types · 18,843 active
Property tax7 types · 6,688 active
Elevators4 types · 463 active
Boilers2 types · 278 active
Building and environment5 types · 2,843 active
Schools and courses1 type · 29 active
Services and trade17 types · 17,775 active

The hours, the exams, the fees and the order to do things in, written from TDLR's own application pages. Each guide also shows how many people hold that license today.
Many people search for the boiler, the elevator or the tow truck, not the license holder. Each one has its own TDLR search.

Check whether a boiler's certificate is current and who inspects it.
Good to know: Since 15 June 2026 an expired certificate runs a daily late fee: $25, then $50, then $100 a day.

Find an elevator, escalator or lift and see its inspection status.
Good to know: Inside Houston city limits, elevators are regulated by the City of Houston, not TDLR.

Check a tow company or storage lot, and what to do if your car was towed.
Good to know: A tow hearing must be requested from a justice of the peace before the 14th day in storage.

Search TDLR enforcement orders by name or license type.
Good to know: The online search covers the current fiscal year and the two before it.

Fewer than one in five candidates passed the master electrician calculations part.
Plain-language answers, each checked against TDLR pages and Texas rules.
Use the official TDLR license search: choose the license type, then enter the holder's name or license number. Results show the license type, number and whether it is active. The TDLR website is the official record.
A TDLR license is active until its expiration date. After that date it must be renewed before you can keep working under it, and most license types require approved continuing education before renewal.
The public TDLR file lists 739,394 active licenses across 82 license types. About 43,878 expire every month.