The White House is the most visited residence in the world . Tours may be scheduled through our Washington D. C. office . Due to security and scheduling procedures, there are a few things you should know before requesting a tour : Only groups of 10 or more may request a tour. Requests must be submitted with a minimum of one month ’ s advance notice from the date of the tour . Notice of whether your application is accepted will be given 10 days prior to the date requested . All tours, even after they have been confirmed, are subject to cancellation due to security interests. Tours are only conducted Tuesday through Saturday from 7 : 30 a.m to 11 : 30 a.m . To process your request for a tour, please contact our Washington office at (202)224 - 5521 and provide the following information : Date(s)requesting . Security information for each person in your party, including : name as it appears on I . D. (I . D. required for ages 14 and up), date of birth, social security number, country of origin, and citizenship( 公民的身份 ) . A home address and daytime and evening phone numbers for the designated( 指派的 ) leader of the group. A contact number while in D. C. for the designated leader of the group . After your request is confirmed or denied, our office will contact you with further instructions.