I originally thought the same, but I couldn't find in the final ruling where it states that Tier 1 offerings are restricted only to accredited investors.

Also, I saw a SeedInvest summary article on the proposed rules and it stated: "Anyone can invest: Not limited to just “accredited investors” – your friends and family can invest. Tier 2 investors will, however, be subject to investment limits described below."[1]

A law firm called Morrison Foerster also has a nice summary table on page 9 of their Regulation A+ client alert[2].

[1] http://www.seedinvest.com/blog/regulation-a-equity-crowdfund...

[2] http://www.mofo.com/~/media/Files/ClientAlert/2015/03/150326...