US Chess - FIDE Rule Differences (effective January 1, 2018 FIDE Laws)
By NTD/IA Kenneth Ballou   

Here is the link to a brief summary of differences between the FIDE Laws of Chess and the US Chess Official Rules of Chess. This is not meant to be a comprehensive list.

Summary of differences between the FIDE Laws of Chess (effective January 1, 2018) and the US Chess Federation's Official Rules of Chess, 7th edition.