The Japanese Olympic Committee is expected to raise the ratio of women on its board to at least 40 percent from the current level of 20 percent.
The JOC reviewed its rules on executive positions to ensure transparency in management and promote gender equality, based on the governance code for sports organizations adopted in June last year.
It set numerical targets, limiting board members to 5 terms maximum, or 10 years, and raising the percentage of women to at least 40 percent and that of external directors to at least 25 percent.
The selection committee for executives has put together a list of candidates for the board's election, which will be held later this month for the first time under the new rules.
Sources say the JOC has chosen athletes and outside personnel, who have been involved in the organization's management, as the candidates.
They say among the 30 candidates, the number of women has increased significantly from the current five directors to at least 12.
They reportedly include Tanimoto Ayumi, who won a gold medal in judo at the 2004 Athens Olympics, and Taguchi Aki, who competed in three consecutive Paralympics as a shooter.
The ratio of external directors is to top at least 25 percent.
About half of the board will consist of new members. The members will be officially decided by the JOC council in late June.
The president and secretary general will be chosen at a subsequent executive board meeting.
Judoka Yamashita Yasuhiro appears certain to become president for a second term.