Ottoman Vilayet, Sanjak and Kaza's.
Some stuff to note:
-It was mostly done by overlaying, except for in The Balkans.
-Some areas are missing Kaza's, but I don't have anything on them.
-Everything that is de jure Ottoman is added for maximum coverage
-It's syntax is probably inaccurate, but the borders are %95 correct.
-In Southeastern Anatolia, Ankara and Sivas, there's some alignment issues.
-Some borders may not fit the common borders but they were off in the Q-BAM, I'm like %90 sure.
-Libya's desert borders are a bit arbitrary, but it shouldn't be an issue.