The Australian Prudential Regulation Authority (APRA) has authorised legalsuper for MySuper.
Chief executive, Andrew Proebstl said the fund would be ready to launch its new default product on 1 July.
"We are delighted to have obtained our MySuper licence and are pleased to be one of a small group of funds that have received this licence ahead of the 1 July 2013 start date for the new regime," he said.
"Members who are required to be transitioned into the new MySuper product will continue to benefit from the products and services that legalsuper delivers to those working in the Australian legal profession."
The $1.6 billion industry fund recently launched direct investment options for its members.
The two funds have announced the signing of a non-binding MOU to explore a potential merger.
The board must shift its focus from managing inflation to stimulating the economy with the trimmed mean inflation figure edging closer to the 2.5 per cent target, economists have said.
ASIC chair Joe Longo says superannuation trustees must do more to protect members from misconduct and high-risk schemes.
Super fund mergers are rising, but poor planning during successor fund transfers has left members and employers exposed to serious risks.