Pensions minister Steve Webb has confirmed that an update for the defined ambition (DA) project will be published in the summer.
He also admitted that legislation may be required to enact the introduction of DA depending on what system is finally adopted.
Speaking at the Scottish Widows Pensions Report Question Time event, Webb said: "Following our pre-Christmas exploratory document there will be an update on that in the summer. But clearly with auto-enrolment happening as we speak and the abolition of contracting out in 2016, clearly we need to be out there getting things ready."
After being questioned by shadow pensions minister Gregg McClymont MP, Webb explained the routes that were possible for the introduction of DA.
"Some of these things can be done without legislation, some could be done by regulation and some require primary legislation.
"So it rather depends which approach is gaining traction because I'm doing what the Labour party used to call a prawn cocktail case - talking to the people in big firms who make the decisions, recognising all the things they hate about ordinary defined benefit, seeing if there is something that will work for them.
"We're not going to invent a structure legislating it if there's no takers," he added.
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