Google Screened is currently a test program limited to a few verticals in a few markets: lawyers (estate planning, immigration), financial planners and realtors in San Diego and Houston. Businesses must also possess a star rating on Google of 3.0 or greater to be eligible. There’s no application fee for Local Services advertisers (in the relevant categories and markets). Google Screened businesses must also have a license and pass civil and criminal background checks.
Google looks to have been testing desktop search desktop results as a searcher noticed that for some search result listings, the snippets don’t have URLs showing up. Instead you just see a favicon, a hashtag and an arrow down. This seems to only impact the interface Google is testing with favicons on the desktop results, not the main user interface.