From the article:
The Brooking Institution and the Obama administration recently began efforts to encourage state reform of occupational licensing, joining market-oriented think tanks and other institutions that have long advocated such reform. In March 2015, the Brookings Institution released a policy brief, Reforming Occupational Licensing Policies, authored by Kleiner that offers four policy proposals intended to systematize and harmonize occupational licensing regulation. He believes the proposals would reduce state-level regulatory and economic costs while simultaneously increasing employment opportunities and expanding consumer access to services and goods.