ISER’s partnerships with the private sector are a strength which has enabled the division to respond to the needs of the sector and the nation. The division’s domestic capabilities have been greatly enhanced by the relationships that have been created over years of collaborations with companies from all parts the sector, including electricity, oil, and natural gas. Specific mission areas, such as risk and system analysis, modeling and visualization across subsectors, and incident response would not be possible without the participation of the private sector. The relationships ISER maintains with energy sector owners and operators and public associations representing energy subsectors, including the American Petroleum Institute (API), American Gas Association (AGA), and North American Electric Reliability Corporation (NERC) are other means ISER uses to promote best practices and share lessons learned across the sector. These functions could not be performed without the voluntary participation of private and public organizations throughout the energy sector, and their value goes beyond measure in the event of an incident affecting the energy reliability of the nation, or other nations that require support from the U.S.