It does appear though that we no longer get hypoxic at 10,001 feet but that we can survive up to 12,500 and even up to 14,000 for 30 minutes (warning - cursory glance only)
I too am bemused that most of it seems to imply a strict liability offense unless... I.e. You are guilty of crime unless you do, or prove, otherwise.
Another small point is that it is a strict offense to overfly a public gathering, with no altitude mentioned, should be interesting to watch the overflights of cities having to divert to avoid the overflight of the opening of an envelope /sarc off