FAA Knowledge Test Codes (PLT) Updated September 2020
In September of 2020, the FAA released an updated FAA Knowledge Test Codes document. This document is used for codes on practical tests that are not under the ACS system yet. DPEs may still find need for this information on review of knowledge tests for practical test administration until all FAA Practical Tests are eventually conducted using ACS standards.
These can be found at:
https://www.faa.gov/training_testing/testing/media/learningstatementreferenceguide.pdf