  We present the computer code RECOLA for the computation of EW and QCD
amplitudes in the Standard Model at next-to-leading order. One-loop amplitudes
are represented as linear combinations of tensor integrals whose coefficients
are calculated by means of recursive relations similar to Dyson-Schwinger
equations. A novel treatment of colour enables us to recursively construct the
colour structure of the amplitude efficiently. RECOLA is linked with the
library COLLIER for the computation of the tensor integrals.
