Absorption coefficients, or cross sections, of carbon monoxide have been measured in the 1006-600-©®A wavelength region at a bandwidth of 0.5 ©®A using the Hopfield helium continuum as background and a photoelectric technique. Strong bands (up to [kappa]~4500 cm−1) were observed from 1006 ©®A to about 715 ©®A and continues weaker bands were found at shorter wavelengths. These bands agree well in location and relative intensity with absorption spectra previously available. Continuous absorption begins at about 960 ©®A and continues to 600 ©®A. At wavelengths less than the first ionization potential at 884.7 ©®A, intense ionization continua are observed. There is one maximum in the continuum of [kappa]=950 cm−1 at about 870 ©®A associated with the COX2[sigma]+ state and another maximum of [kappa]=950 cm−1 at about 724 ©®A associated with the CO+A2II[iota] state.