Oregon Solar Heating and Cooling Installer (STL) License

The Solar Heating and Cooling Installer (STL) License allows you to do the following work:

• Install and replace solar heating and cooling systems, including:
  • Collectors
  • Heat transfer systems
  • Heat storage
  • Associated piping
  • Solar conversion of existing water heating or cooling systems
• Piping and related appurtenances applicable to the temperature pressure relief valve
• Can’t connect a solar heating or cooling system to a potable water source

How to Get the Solar Heating and Cooling Installer (STL) License in Oregon?

1. Fill out the application form:
   • Solar Heating and Cooling Installer (STL) Licenses Application Form
2. Complete a work history document and fill out the experience verification form:
   • Solar Heating and Cooling Installer (STL) Experience Verification Form
3. Sign an applicant’s affidavit and choose the preferred examination location
4. Mail or fax a sealed packet of all the previous documents to:
   Oregon Building Codes Division
   P.O. Box 14470
   Salem, OR 97309-0404
   Fax: 503-378-2322
5. Schedule, pay, and take the 3 hour 52 question open book examination administered by the Building Codes Division
6. Expect the license issued by the Building Codes Division via mail