Apparently the SPFL have voted through a change that requires clubs to have a bronze club license to be able to play in it.
I had a look through the licensing manual and noted everything different from Bronze to Entry level. Basically a better ground, more qualified first team staff, and stricter admin. These seem like sensible criteria for clubs who wish to play at a national league level - given entry level licensing covers a wide variety of clubs from Airdrie and Cove all the way down to Creetown and Golspie, I don't think it's a bad thing to hold the top 42 clubs to a higher standard.
(5.7 Floodlights - Bron