A broad-band (2135-2165 cm(-1)) infrared spectrum of the CO-N-2 van der Waals complex is obtained, using a tunable quantum cascade laser to probe a pulsed supersonic expansion from a slit jet source. Analysis of the spectrum results in the characterization of four new 'stacks' of rotational levels for CO-orthoN(2) (all in the v(CO) = 1 upper state) and five new stacks for CO-paraN(2) (three in the upper state and two in the v(CO) = 0 lower state). This considerably expands our knowledge of a rather fundamental weakly bound complex and should lead to improved determinations of the intermolecular forces governing interactions between the carbon monoxide and nitrogen molecules.