This PTS guide is for Flight Instructor Instrument ? Airplane and Helicopter. The Practical Test Standards (PTS) guide students, instructors, and FAA-designated examiners through checkrides. Every PTS details the skill and knowledge that must be demonstrated before an examiner can issue a certificate or rating to an applicant. Written by the FAA, these books list the knowledge and experience prerequisites, the levels of skill that must be demonstrated before an examiner can issue a certificate or rating to an applicant, and describe background study and reference materials. The FAA is presently working on updating the PTS to the ACS (Airman Certification Standards), but as of this release date (2019) an ACS for Flight Instructor Instrument ? Airplane and Helicopter has not yet been published by the FAA (includes changes 1 & 2).
Just like the CFI PTS, the ACS version of this needs to come out. There are no specifically listed completion standards in these old versions like the new ones. The ACS is so much clearer.