Originally Posted by
nmh1204
It says adjacant seat. That doesn't mean contiguous.
ad·ja·cent əˈjās(ə)nt/ 1.
next to or adjoining something else. "adjacent rooms"
synonyms: adjoining, neighboring, next-door, abutting, contiguous, proximate;
What are you thinking the difference is (other than the correct spelling?). There aren't barriers between airline seats as is the difference in hotel rooms.
It also says "to the maximum extent practicable", not just "whenever 'practicable'"