Interesting question. I am not aware of anything in the code expressly addressing adjuncts. Usually, these are specific to the university and are negotiated contractually between the adjunct and the department administration. (Incidentally, I have been involved in contract negotiations as a staff association representative for sessional/contract professions, but never for adjuncts. The assumption we made was that adjuncts were more short term with specific tasks, such as supervision of one or two grad students. I have been appointed as an adjunct myself, and I had this limited role.)
