When playing using the international lexicon, the word reference is the third edition of
Collins Official Scrabble Words, commonly referred to as CSW2015.
It sounds like Hasbro used to sponsor the tournaments. Then they stopped funding it, but officially-endorsed a player-organized league, NASPA, the people whose rules are given above. Then in 2021, they stopped any official endorsement.
So with that exclusivity gone, I imagine that someone with sufficient savvy that could sell enough players on the need for PECKERWOOD could form a rival league.
Well, now, tournaments are another matter.
Hmm.
http://scrabbleplayers.org/w/Official_Tournament_Rules
http://www.scrabbleplayers.org/rules/rules-20161201.pdf
https://scrabble.collinsdictionary.com/check/
Hmm, yeah, they don’t allow PECKERWOOD.
It sounds like Hasbro used to sponsor the tournaments. Then they stopped funding it, but officially-endorsed a player-organized league, NASPA, the people whose rules are given above. Then in 2021, they stopped any official endorsement.
So with that exclusivity gone, I imagine that someone with sufficient savvy that could sell enough players on the need for PECKERWOOD could form a rival league.