Shoreline Risk Zones: Two inundation risk zones have been mapped for the Reservation, one for sea level rise and one for storm surge. The Swinomish Shorelines and Sensitive Areas (SSA) ordinance is one statute used to regulate development and use of the shoreline zone within the Reservation (Swinomish Tribal Code Chapter 19-04); other Tribal or Federal law may also apply. Many of the potential regulatory changes to address climate change adaptation could be approached as amendments to the SSA ordinance. The SSA ordinance could incorporate the concept of these risk zones as an additional type of “sensitive areas” in which specific rules apply. Under this approach, for example, regulatory restrictions might be placed on structures in the risk zone and risk reduction measures might be required. Such restrictions might include regulatory controls on new construction within risk zones and raising the threshold for allowing Swinomish Climate Change Initiative Climate Adaptation Action Plan repair or replacement of existing structures. In addition, areas at risk from bluff erosion may be subject to changes in protective regulations. Other regulatory tools may be adopted under different Tribal code sections.