'You may submit a total of 1 map per session. In other words, once you have posted 1 map, do not post any more until a map crew member replies to the thread with a review of your maps. If you post more than 1 map, they will be automatically ignored.'
This has been changed ^
This has been bumped up to 3 maps. Therefore you're now allowed to send 3 maps instead of 1, but if you send more than 3 maps the extra maps will automatically be ignored.