Japan revises Labor Standards Act to let women supervise underground work

In 2006, Japan revised the rules under its Labor Standards Act, the basic law governing working conditions, to loosen a long-standing restriction on women working underground. The restriction dated from the postwar period and was meant to protect women from the dangers of mines and tunnels.

Under the revision, women were allowed to do technical management and supervisory work underground. That opened the way for female engineers and site supervisors to enter tunnels and mines as part of their jobs, which had previously been barred even for those roles.

The change was limited, however. Physically demanding and hazardous tasks, including excavation and blasting work at tunnel faces, remained banned for women. Japan's labor authorities kept those bans in place, citing safety and the heavy nature of the work.

The revision mattered because it was an early step in reducing gender-based limits in the construction and mining sectors, and it became the baseline for later debate over whether the remaining prohibitions should also be lifted.