The most sustained critique of the doctrine of public rules comes from Cohen (2008: ch. 8). Though he advances a number of distinct objections to the doctrine, for reasons of space we shall focus on only one element of his analysis, in which he disputes the claim that principles of justice must pass the tests of determinacy, accessibility, and of verifiable compliance. Cohen denies that, in order to be valid, principles of justice must be capable of serving as a public standard. Instead, he maintains that we can rely solely upon citizens’ good faith efforts. This is the Good Faith Efforts Objection (Casal 2015; Lippert-Rasmussen 2015: ch. 8).