(C) Only designated dwelling units on the certified list are used for occupancy for fewer than thirty consecutive days and only by (i) natural persons, other than persons whose only relationship with the college or university is as a student, for whom the college or university has undertaken to provide housing accommodations such as visiting professors and academics, graduate students with research or teaching fellowships, researchers and persons presenting academic papers, interviewing for positions of employment or having other similar business with the college or university, or (ii) natural persons for whom a hospital affiliated with such college or university has undertaken to provide housing accommodations such as patients, patients' families and/or accompanying escorts, medical professionals and healthcare consultants or persons having other similar business with such hospital. A log shall be maintained on the premises of the names and addresses of such persons and the duration and reason for their stay. Such log shall be accessible upon request for inspection by the department and the fire department of such municipality;
(D) No rent or other payment is collected for such occupancy; and
(E) The fire department of such city shall require the filing of a fire safety plan or other appropriate fire safety procedure.