2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/222465$χ^2$ vetoes are commonly used in searching for gravitational waves, in particular for broad-band signals, but they can also be applied to narrow-band continuous wave signals, such as those expected from rapidly rotating neutron stars. In this paper we present a $χ^2$ veto adapted to the Hough transform searches for continuous gravitational wave signals; we characterize the $χ^2$-significance plane for different frequency bands; and discuss the expected performance of this veto in LIGO analysis.Final version, 12th Gravitational Waves Data Analysis WorkshopGeneral Relativity and Quantum Cosmologytext