The U.S. Department of Labor is pushing back its time frame for releasing a highly anticipated proposal for expanding fiduciary responsibilities for financial advisers who work with retirement plans, FinancialPlanning.com reported. Speaking at the Financial Services Institute's Financial Advisor Summit, Phyllis Borzi, the Labor Department's assistant secretary for the Employee Benefit Security Administration, said that her agency is continuing to revise its proposal, and that it is more concerned about getting it right than delivering it on the previously announced schedule. The agency has faced intense opposition to the rule, which it first proposed in 2010. The new proposal will include a far more rigorous analysis of the impact of the regulations, Borzi said.