  We present new parton distribution functions (PDFs) up to
next-to-next-to-leading order (NNLO) from the CTEQ-TEA global analysis of
quantum chromodynamics. These differ from previous CT PDFs in several respects,
including the use of data from LHC experiments and the new D0 charged lepton
rapidity asymmetry data, as well as the use of more flexible parametrization of
PDFs that, in particular, allows a better fit to different combinations of
quark flavors. Predictions for important LHC processes, especially Higgs boson
production at 13 TeV, are presented. These CT14 PDFs include a central set and
error sets in the Hessian representation. For completeness, we also present the
CT14 PDFs determined at the leading order (LO) and the next-to-leading order
(NLO) in QCD. Besides these general-purpose PDF sets, we provide a series of
(N)NLO sets with various $\alpha_s$ values and additional sets in general-mass
variable flavor number (GM-VFN) schemes, to deal with heavy partons, with up to
3, 4, and 6 active flavors.
