Turnitin (Tii) Rubrics can be exported and import to Tii, but they only work in Tii.
A rubric is attached to a particular instructor and will follow that person from course to course.
If a rubric is shared, it has to be reset in Tii when imported.
A rubric cannot be deleted if it has been used. It must stay associated with the assignment it was used for.
Rubrics can be copied and modified.