Code and Pixels is an IETM level 4 and S1000D development company delivered 25 projects. IETM stands for Interactive Electronic Technical Manual Services which are classified as Level 1/Class 1, Level 2/Class 2, Level 3/Class 3, Level 4/Class 4/Class 4 and Level 5/Class 5. IETM is the replacement of paper work which is equivalent for a paper- based presentation.
https://www.codeandpixels.net/s1000d-ietm-ietp