This is the modification of the CLASS code v1.7 that incorporates the cosmological model of Lorentz invariance violation (LV) in gravity and dark matter, presented in arXiv:1209.0464. This code was used in the paper arXiv:1410.6514. Compared to the usual CLASS code, it containts 4 new parameters (see arXiv:1410.6514 for more detail):

• alpha, beta, lambda - charachterize LV in the gravity sector

• Y - charachterizes LV in the dark matter sector

If you use this code for your research, please cite the papers arXiv:1209.0464 and arXiv:1410.6514.