The Federal Register is the log of the changes, the Code of Federal Regulations is the product after applying all those changes. The Code is only about 190,000 page, so about 20 times less, which means if you abandoned your antisocial ways and made one friend (and, big stretch, another one to account for future growth of the code), the two/three of you could bleed out a copy of the updated Code by yourself each year for the foreseeable future.