The C-C stretching fundamental nu(3) and the difference band 2nu(3)-nu(3) of the CCO radical have been measured in the gas phase using a tunable infrared diode laser spectrometer. The CCO radical was produced using a flowing mixture of carbon suboxide and helium subjected to a hollow-cathode discharge. The spectral region between 1035-1085 cm(-1) was probed. Fifty-five and fifty-three rovibrational transitions were measured in the nu(3) and 2nu(3)-nu(3) bands, respectively. The analyses of these bands yielded spectroscopic constants for (001) and (002) vibrational states. The band origins for nu(3) and 2nu(3)-nu(3) were determined to be 1066.82407(54) and 1061.91084(63) cm(-1), respectively. To check the consistency of the data in this work and those in the C-O stretching region, several lines from the nu(1)+nu(3)-nu(1) band were also recorded. These lines were observed at their predicted frequency. (C) 2003 American Institute of Physics.