Canada expands on defences to NAFTA claim over environmental assessment of Nova Scotia quarry; government says regulatory goals and project differences may justify different treatments for different projects May 21, 2012Environmental Disputes, News, North American Free Trade Agreement (NAFTA), UNCITRAL and Ad-Hoc Clayton Bilcon arbitration, Clayton bilcon Canada, Clayton bilcon Canada arbitration, Clayton/bilcon v. Canada, NAFTA arbitration, NAFTA Chapter 11 arbitration Jarrod Hepburn You are not logged in. If you are a subscriber, please Login to access. If you are not a subscriber, you can contact us for a rate quote at subscribe@iareporter.com. Alternatively, you can sign up to receive free email headlines here.