  We present the first official release of the nCTEQ nuclear parton
distribution functions (nPDFs) with errors. The main addition to the previous
nCTEQ PDFs is the introduction of PDF uncertainties based on the Hessian
method. Another important improvement is the inclusion of pion production data
from RHIC giving us a handle to constrain gluon PDF. In this presentation we
briefly discuss the framework of our analysis and concentrate on the comparison
of our results with those of other groups.
