title_body: What exactly is an XPA?
upvoted_answer: Is there any standard that differentiates an XPA from other American
    pale ales?
  
  
  Currently, no. 
  
  According to the latest Beer Judge Certification Program guidelines (the drafted 2015 style guide http://www.bjcp.org/docs/2015_Guidelines_Beer.pdf), there is no category of XPA or Extra Pale Ale.
  
  Stylistically, depending on the malt bill used, one would place the beer in either an American Pale Ale or IPA category, though most 'sub styles' the BJCP wants to have in the 21B. Specialty IPA category. If it was heavy in British malts, perhaps even an English IPA. 
  
  This doesn't mean, however, that a brewery can't just make up whatever they feel like to call their beer, which is what I believe is happening there. XPA sounds cool, new, and interesting.
  
  The idea of the style has been around for a few years, at least back to 2013 as referenced by this HomeBrewTalk forum post. Even then there were debates as to the meaning of this style... and it still hasn't become anything of note.