The term "exclusive responsibility" refers to a situation where one person or party is held accountable for something and no other individual or group shares that responsibility. Full definition
«Those who expressed negative views stated that running elections in this country was the sovereign and exclusive responsibility of the states, and they did not want federal intrusion, a federal takeover, or federal regulation of that process.» (businessinsider.com)
Since the company's launch in 2008, LaMear has had almost exclusive responsibility for procuring the material Urban Reclamations uses to fabricate its heirloom - quality creations. (inc.com)
One of the biggest complaints that Apple has is the fact Bromwich is demanding interviews with Apple CEO Tim Cook, board member Al Gore, and Jony Ive («whose sole and exclusive responsibility at Apple is to perfect elegant product designs,» according to an Apple attorney. (goodereader.com)