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Air Pollution Training Institute - Public Training Site

This page provides access to the updated APTI-Learn Learning Management System. The old APTI-Learn System has been decommissioned.

  • If you work with a State, Tribal or Local Government, please contact your Training Coordinator for access to the new State, Tribal, and Local Government LMS.
  • If you need a training certificate from and the old APTI-Learn LMS, please send an email to
    Be sure to put “APTI-Learn Training Certificate Request” in the subject line.
  • For other users (US EPA Employees, Air Quality Professional, Educator, Student, Public, etc.), see below to access the public training site for your air pollution training needs.

You can access a curriculum that will chart you through a learning objective-based path.

You can also choose a complete online course from the course list.

The content on this site will be updated during 2021; check back periodically to view new additions.