Right now I am studying the ATP written material and I have a few questions. Basically I had heard that some prep courses omit some of the chapters to reduce the question bank. I am assuming that this would include the 135 regs, if you were to take the 121 atp test etc... Right now I am studying for interview prep (for 121 jobs) and for general knowledge, but don't plan on taking the test until down the road a bit. Are there any chapters I can disregard (135 regs? dispatcher questions?) I don't mind the studying, it would just a bit easier to divide and conquer if I knew exsctly what I should be focusing on. This may have been discussed before , but I am just looking for some quick guidance. everyone was very helpful on the takeoff alternate thread by the way. Thanks