I think cruise control can safely be deleted under the "driver controls" heading (don't have GCR handy, will add citation later).
On the power steering (PS) issue, I think this is one of the rare instances of opposite rules creep. There used to be a sentence at the beginning of the ITCS that read something like "comfort and convenience items may be removed." Power steering was certainly one of those items, but others were less obvious. For example, I guess too many people tried to remove those nasty heater cores under this guise while others considered a heater/defroster to be more of a safety issue (I know, both for and against). I don't know exactly when that language disappeared, but it certainly did. Aside from the poor guy that got DQ'd for having a manual rack that was only available with a differently classed engine, the change pretty much breezed by because most people *could* run a standard or optional manual rack. Obviously, there are a few cars (especially newer ones with ITS/ITA engines) where that engine was only available in a decked out "package" with PS. I think it's a bit silly, but COA opinions have held that PS must be retained if no examples of the spec line car came without it. That's our current rule.