The Chief Negotiator for the European Union, Ignacio Garcia Bercero, outlined the main areas of progress throughout the most recent week of the ongoing TTIP negotiations. In the area of regulatory cooperation and rules, the negotiators worked on issues of horizontal cooperation like technical barriers to trade.
In addition, they discussed regulations pertaining to specific sectors such as cars, pharmaceuticals, and chemicals. Bercero stressed that horizontal cooperation would only happen in areas where regulators consider cooperation to offer efficiency gains compared to the current regulatory regime. He added that regulatory cooperation as a result of TTIP would not violate the regulatory sovereignty of the EU. (More here: European Commission)