The deadline for applying for Arlington Countywide Elementary School Programs is April 15th this year. There is a process to this and you need to research the requirements. When I did this for my own children one had to visit the local elementary school on an OPEN House Day and have them sign-off on the Transfer. These have been held on a monthly basis. So allow time to get the paperwork completed. I think you will find this link helpful http://www.apsva.us/page/3005
. If I can help with the process, please do not hesittate to contact me.