The A ̃(1A′)↔ X ̃(1A′′) spectroscopy of jet-cooled CBrCl has been measured by both laser-induced fluorescence excitation and dispersed fluorescence. All three vibrational frequencies were assigned and measured in both electronic states, including the first gas phase measurements of the C–Cl stretching frequencies, ν 1 ′′ =759 and ν1′=716cm−1. An almost complete set of anharmonicity constants, x ij , were evaluated in both electronic states. In the A ̃ state these values were measured for all isotopomers involving 35,37Cl and 79,81Br. The LIF spectrum was measured to the limit of observable Franck–Condon intensity. No evidence was found for shortening of the fluorescence lifetime or for large changes in the A ′ rotational constant, which have been observed in other halo-carbenes and indicate the presence of other photochemical or photophysical pathways.