The color coding for lesson 12 shows this lesson to be a third year lesson, yet it doesn't show up in the syllabus, what gives?? Well....the workbook is not due to be updated until the 2011 code comes out, but the information on calculating fault currents is covered in both grounding and electrical safety too. I think, reading between the lines, that the curriculum coordinating committee decided to take this out of the curriculum due to that duplication, but didn't think that warranted a re-printing of the book just to get rid of the color coding. Just go with the syllabus on this one. Thanks for bringing up the questions ahead of time though, it isn't always this simple to fix when we do find an issue and it helps to have some lead time to come up with a workaround.