Capitol Complex Construction

If you are planning to visit the Railroad Commission’s Austin offices in the William B. Travis state office building, please be aware of changes to traffic patterns and the availability of metered parking in the area due to the Capitol Complex Construction project.  Click here for additional information.

Registration and Certification Search

Conduct a search for registered plumbers and air conditioning and refrigeration (ACR) contractors, certified individuals and registered transport units.

The search features on this webpage were formerly available at

Use the following PDF documents and Excel spreadsheets to:
  • verify registered Master and Journeyman plumbers or ACR contractors;
  • verify certified individuals;
  • determine continuing education due dates for certified individuals; and
  • determine when inspections are due for transport units registered with the Railroad Commission of Texas.
You may use the find feature in either Adobe (PDF) or Excel (spreadsheet) to locate a specific person, company or transport unit. The find feature in Adobe can be opened using Ctrl + F or through the Edit menu. The find feature in Excel can be opened using Ctrl + F or through the Home menu.

Master and Journeyman Plumbers and ACR Contractors: PDF or Excel

Certfied Individuals: PDF or Excel

Registered Transport Units: PDF or Excel

Last Updated: 7/2/2018 12:27:00 PM