What I mean is does the parts list have to be on the bottom in the middle, left corner, right corner, upper corner, lower corner, etc? If there is such a standard, where would I find this?
If you are in ASME world, you may want to search for ASME Y14.34. In the '96 version of the standard (there is a newer version, issued in 2008) paragraph 5.5 is what you probably need.