Access to our OIH website will be stopped due to system maintenance from 9:00 am to 2:00 pm on Monday, March 30, 2020. We sincerely apologize for any inconvenience this may cause and thank you for your understanding. System Maintenance schedule : Monday, March 30, 2020, 9:00 a.m. to 2:00 p.m. Please note that the time may vary depending on the work.