The postal privatization headquarters will ask Japan Post Corp. to provide details by the end of April on how it intends carry out its privatization, officials said Friday.

The headquarters is overseen by Prime Minister Junichiro Koizumi and made up of all other Cabinet ministers.

Japan Post Corp. was set up in January as a joint stock company to draw up a plan for the privatization of Japan Post, the public corporation that runs the postal system.

Issues the plan is supposed to address include how the privatized company will ensure lawful conduct, as recommended by a headquarters panel of outside experts.

The headquarters has also instructed Japan Post Corp. to ensure that its information systems are adequate and to take other steps to prepare for the privatization, which is due to start in October 2007.

The headquarters called on the panel to study the licensing of new lines of business for the privatized postal savings bank and life insurance company.

Japan Post has come under fire in recent months over questionable business practices, including the discovery in May that a post office in Nagaoka, Niigata Prefecture, had provided illegal discounts on mail service to certain large customers.