  Chiral effective field theory ($\chi$EFT) provides a framework for obtaining
internucleon interactions in a systematically improvable fashion from first
principles, while also providing for the derivation of consistent electroweak
current operators. In this work, we apply consistently derived interactions and
currents towards calculating the magnetic dipole moments of the $A=3$ systems
Triton and Helium-3. We focus here on LENPIC interactions obtained using
semilocal coordinate-space (SCS) regularization. Starting from the
momentum-space representation of the LENPIC $\chi$EFT vector current, we derive
the SCS-regularized magnetic dipole operator up through N2LO. We then carry out
no-core shell model calculations for Triton and Helium-3 systems, using the SCS
LENPIC interaction at N2LO in $\chi$EFT, and evaluate the magnetic dipole
moments obtained using the consistently derived one-nucleon and two-nucleon
electromagnetic currents. As anticipated by prior results with $\chi$EFT
currents, the current corrections through N2LO provide improved, but not yet
complete, agreement with experiment for the Triton and Helium-3 magnetic dipole
moments.
