Division #'s 01 & 03 - 13 wear Shihakushou. Most of Division 02, Lieutenant & on, probably wears the Shihakusho, as well.
Division #02's Captains wear Shouzouku. The 02nd Division's former & current captains wear different outfits, from the rest of them, because they have their shunkou attack that blows away clothing on their back & shoulders, when in use. So they need to dress differently.