  Measurements of parity-violating asymmetries in DIS region using the SoLID
spectrometer at Jefferson Lab (JLab) Hall A in the 12 GeV era are presented. A
proposal with a polarized electron beam on unpolarized deuteron and proton
targets has been approved with an A rating by the JLab PAC. The deuteron
measurement aims to measure the weak mixing angle $\sin^2 \theta_W $ with a
precision of $\pm$ 0.0006 as well as to access the fundamental coupling
constants $C_{2q}$ with a high precision. This measurement is ideally suited
for testing the Standard Model with the potential to probe charge symmetry
violation and resolve the quark-quark correlations in the DIS region. The
proton experiment provides a clean measurement of $d/u$ ratio in the high-$x$
region free of nuclear corrections. To achieve these goals, the SoLID
spectrometer was proposed and designed to handle a high luminosity with a large
acceptance. In this article, the details of the approved measurements are
discussed, along with new ideas with PVDIS using a polarized $^3$He target to
access new $\gamma-Z$ interference polarized structure functions and a
unpolarized $^{48}$Ca target to study the EMC effect.
