A material subsistence report was a report that was compiled by a liaison officer.
In 2369, Commander Sisko and Major Kira of Deep Space 9 had to discuss such a report before the week ended, prompting him to visit her on Jeraddo in person to remind her of that fact.
Kira was unable to help Sisko with the report, as she was still trying to convince Mullibok to leave the moon. Sisko reminded her that working on the report was part of her job, which she didn't dispute, and said he'd hate to have to break in a new liaison officer. (DS9: "Progress")