In this dissertation I explore the nature of interpretive dependencies in human language. In particular I investigate the limits of syntactically mediated interpretive dependencies as well as non-syntactic ones. Broadly speaking I investigate the limits of grammatical dependencies and note that current theory cannot possibly handle certain dependencies. That certain dependencies evade grammatical explanation requires a rethinking of the representations of those dependencies. The results of this investigation concern the primacy and the purview of the syntax component of the grammar. In short, the purview of syntactic relations is limited to c-command and if a c-command relation holds between two related elements, a syntactic relation must hold between them, either directly or indirectly. When c-command does not hold between the related elements, a syntactic dependency is not possible and the dependency must hold at a subsequent level of representation. To show this, I explore interpretive dependencies that I argue only superficially resemble standard, syntactically-mediated relations (such as Wh-gap dependencies). I show that these dependencies are not amenable to analysis as syntactically-mediated relations. These include Coordinated-Wh Questions like those explored in Gracanin-Yuksek 2007, Right Node Raising constructions like those explored in Postal 1974, and Across-the-board constructions like those explored in Williams 1978. Each of these involves an interpretive dependency that I claim cannot be derived syntactically. The above constructions evade explanation via traditional syntactic tools as well as semantic and pragmatic means of analysis. If the above constructions involve dependencies that cannot be construed as syntactically-, semantically-, or pragmatically-mediated, it must be the case that these otherwise normal dependencies are captured via other means, whatever that may be.