Northwest Environmental Conference & Trade Show The Northwest Environmental Conference and Trade Show is coming to Portland, Oregon December 9th and 10th. The region's conference for environmental, operations, and sustainability professionals, NWEC provides companies with information they need to stay competitive and ahead of the curve. Now in its 26th year, this signature event is presented by NEBC, Associated Oregon Industries, Oregon Dept. of Environmental Quality, and the Washington Dept. of Ecology. The educational component of the conference focuses on best management practices and advanced topics in environmental protection & compliance, sustainable business management, current & emerging policy issues, and the latest technologies & services. NWEC also includes the region's largest environmental trade show.