See also DOL Secretary Acosta's article, in today's Retirement Plans Bulletin:
https://benefitslink.com/newsletters/2018/2018_08_31_retirement_bulletin.html
(Folks are invited to subscribe to the free daily BenefitsLink Retirement Plans newsletter, including bulletins, use this URL:) https://benefitslink.com/cgi-bin/secure/sub.cgi?l=9
News items from previous newsletters, about multiple employer plans (MEPs) or pooled employer plans (PEPs):
https://benefitslink.com/search/results.php?textQuery=%22multiple+employer+plans%22+OR+MEP+OR+MEPs+OR+%22Pooled+Employer+Plans%22+OR+PEP+OR+PEPs&datasource=MYDB&sort=2