The Municipal Securities Rulemaking Board has proposed guidelines that would provide customers more comprehensive information about their 529 college savings plans options. The program had come under criticism because of dealers that would not, for example, explain all the advantages or disadvantages among the different state plans. Critics said dealers would tout the benefits of certain state plans without disclosing heavy fees that would offset any tax benefits. Under the proposed guidance, dealers that sell out of state 529 plans would have to tell customers of tax advantages of their home-state plans, and would be required to encourage customers to learn more about the various plans from the various state fund administrators.