wheelchairs are unable to access or use the underground arcade. The investigation result by the Commission showed that there were four exits in the underground arcade in front of OO Station and all exits only had stairways, making it virtually impossible for wheelchair-using persons with disabilities to access the underground arcade. Citizens without disabilities can easily access to the bus stop and shopping district on the opposite side via the underground passage, whereas persons with disabilities using wheelchairs were unable to access the underground passage, thus making it impossible for them to take subways or move to the opposite side via the underground passage. The Enforcement Rule of the Act on Promotion of Transportation Convenience of the Mobility Disadvantaged stipulates that "underground passages or pedestrian overpasses with no pedestrian crossings installed within 30 meter of their vicinity shall be constructed in a structure convenient for use of the mobility disadvantaged." However, the underground passage in front of OO Station has not installed mobility convenience facilities for persons with disabilities at four exits despite the fact that it is an accessory to a road and that there are no pedestrian crossings or grade-separated crossing facilities within 200 meter of its vicinity. The Commission considered that this is a violation of discrimination based on disability, which does not provide fair convenience in the mobility of persons with disability and recommended to Mayor of OO City to newly install an elevator in the exit 1 in the underground passage in front of OO Station to relieve difficulties for wheelchair-using persons with disabilities to access and use the underground arcade. 5) Discrimination Based on Country of Origin or Nationality Discrimination based on country of origin refers to an act of favorably treating, excluding, differentiating or unfavorably treating a particular person or a group of particular persons without reasonable cause on the ground of country of origin in all Chapter 4. Investigations and Remedies: Discriminatory Acts 97