Section 479.257 - Design features required for certain smoke alarms; rules(1) Not later than January 1, 2002, every smoke alarm installed in a dwelling unit regulated under ORS chapter 90, a lodging house or a hotel guest room, as required under ORS 479.255, shall contain the features described in ORS 479.297 (1) and (2).(2) The State Fire Marshal by rule may exempt hotels with sprinkler fire suppression systems from the requirements of this section.479.257 was enacted into law by the Legislative Assembly but was not added to or made a part of ORS chapter 479 or any series therein by legislative action. See Preface to Oregon Revised Statutes for further explanation.