NHK has learned that Japan's communications ministry has decided to push for a law revision to require foreign firms to report a network crash to the government.
Email and messaging services offered by big tech firms referred to as GAFA, which include Google and Facebook, are widely used in Japan. But these firms are not subject to the country's telecommunication law as they are based overseas.
Experts have pointed out this makes it difficult for the government to find out the causes of a network crash, and take measures to prevent a recurrence.
Officials say the ministry has decided to seek to revise the law so that it will be applied to foreign firms that provide services to users in Japan.
They say the firms would be required to report to the ministry major trouble such as a network crash, and to inform users in advance on their websites when they discontinue their services.
It would also become mandatory for the firms to station their representatives or agents in Japan so that the government could issue a business improvement orders or ask them for reports.
The ministry plans to seek to revise the law at next year's ordinary session of the Diet after receiving proposals from a panel of experts, due to be held soon.