It's hard to say what the earliest they would accept an application is without asking the person receiving each packet.

I applied the first week of April and had no problem getting a spot exactly when I had hoped. Take that for what it's worth.

thanks, So you applied in the first week of april for a rotation that summer or the summer of the following year? I was thinking that I would apply july this summer for the may/June of next year.

Sent you a pm dragoo

I think ,to apply for this thing, the sooner, the better .so that it can be limited to their own plans within . Then it is not easily disrupt their own itinerary . For example , last time I apply for a certificate, knowing that of late , the results of my work disrupted . At that time ,I was very distressed. So I wish you all the best !