Sorry if this isn't much of an answer, but my one thought is this:
In this 21st century, public services (such as the various civil aviation administrations) should really be making an effort of publishing their data/rulings on the www, or any other commonly and easily accessible medium, in a format open and documented (and hopefully even ruled by some defined and sustained standard) , so as to be available to ANY IT-based aid to navigation. That's what we're paying taxes for, isn't it?
We really shouldn't accept having to pay for information that is essentially available to the broad public, and needs to be by law. And I think we have a right not only to the availability as such, but also to the availability in a format defined by some international standard, and fit for direct interpretation by electronic apparatus.