1 On the NTC and Labeling * Petr Biskup University of Leipzig The No-Tampering Condition is often taken to derive effects of the Extension Condition and the Inclusiveness Condition; however there is no definition of the No-Tampering Condition in Chomsky’s articles that fully captures effects of both conditions. This paper proposes a new condition which in connection with other properties of the proposed system not only derives effects of the Extension Condition and the Inclusiveness Condition, but also has several welcome consequences. The proposal is couched in a derivational model where every operation Merge produces a phase and labeling triggers Transfer. It is shown that the proposed system does not need to employ null phase heads and the Phase Impenetrability Condition and that it supports the copy theory of movement. Keywords: concatenation, labeling, merge, phase, syntactic conditions, transfer 1 Introduction Let us begin with the Inclusiveness Condition. This condition states that no new features can be added in the course of derivation of an expression. Consider the definition in (1), taken from Chomsky 2000:113, (30c), where C HL means the computational procedure of human language (see also Chomsky 1995b:228, 2001:2-3, 2004:107, 2007:note 14, 2008:138). According to Chomsky, the Inclusiveness Condition bars, for instance, introduction of traces and bar levels. * For comments and helpful suggestions, I would like to thank Anke Assmann, Fabian Heck, Gereon Müller, Marc Richards, Martin Salzmann, Tobias Scheer, Radek Šimík and Philipp Weisser.