The National Party is to release three policies during this recess period.

They would be on ACC, employment and workplace relations and small business.

Last week the party's position on ACC hit the headlines after a report by Merrill Lynch said Australian insurers could reap $200 million from moves to open ACC up to private competition.

Today deputy leader Bill English told Agenda on TV One that the small business policy would be released. He said a voluntary probation policy for new workers would be part of that.

Last year National leader John Key said the party had no plans to make "major changes" to the Employment Relations Act.

National's previous policy was to create a new act merging the ERA and Employment Contracts Act. It included removing union monopoly bargaining over collective agreements, establishing a 90 day probation period for new workers, changing mediation, adjudication and personal grievance mechanisms and limiting union access to the workplace.