The Diet enacted a law Wednesday that makes it mandatory for public and transportation facilities to permit the entry of helper dogs that accompany disabled people.

The law, passed by a House of Councilors plenary session in the afternoon, will take effect Oct. 1. It aims to make it easier for people with disabilities to use public facilities.

In addition to public and transportation facilities, disabled people will be permitted to have their helper dogs live with them in public housing. Beginning in October 2003, owners will also be able to stay with their helper dogs in hotels, supermarkets and restaurants.