This is the American Tang Soo Do Assoc. form breakdown (Under GM Byrne - I train under Master David Rexer and he also teaches the Chil Sung/Yuk Ros, as well as weapons - which are not a part of the ATA)
10th - Gicho 1
9th - Gicho 2 & 3 (For the kids - adults do 1 &2 at white)
8th - Pyung Ahn Cho Dan, Chil Sung Ee Ro Hyung
7th - Pyung Ahn Ee Dan
6th - Pyung Ahn Sam Dan
5th - Pyung Ahn Sah Dan
4th - Pyung Ahn Oh Dan, Chil Sung Il Ro Hyung
3rd - Bassai So
2nd - Bassai Dae, Chil Sung Sam Ro Hyung
1st - Naihanji Cho Dan, Bong Hyung Cho Dan
DANS
1st - Jin Do, Sip Soo, Naihanji Ee Dan, Chil Sung Sah Ro Hyung, Wang Bo (Staff), Bong Hyung Ee Dan, Yuk Ro Cho Dan [I know it looks like a lot, but it wasn't that bad, and I was a young kid when I got my Cho Dan)
Also Escrima Cho Dan after 1 yr. at Cho Dan
2nd - Lo Hai, Naihanji Sam Dan, Chil Sung Oh Ro Hyung, Yuk Ro Ee Dan, Ee Wang Bo and Bong Hyung Sam Dan, also Escrima Ee Dan
3rd - Kong Sang Koon, Yuk Ro Sam Dan, Sam Wang Bo, Bong Hyung Sah Dan, Escrima Sam Dan, Tanto Hyung Cho Dan
4th - Wang Shu, Sei Shan, Chil Sung Yuk Ro Hyung, Yuk Ro Sah Dan, Tanto Hyung Ee Dan (Double Dagger)
5th - Ji On & Probably Yuk Ro 5
6th - O Sip Sa Bo (Not sure, could be with 5th) --probably Chil Sung 7 & Yuk Ro 6
I was kind of disappointed to see that Hwa Sun, So RIm Jang Kwan, and Tae Kyuk Kwon weren't included in any of the books/manuals/lists I have/have seen...If I want I'll learn them on my own at the appropriate level
But I have a way to go from Sam Dan