The aforementioned work on the susceptibility of PuO 2 provided a 5f electron count from the RAS(12,16) calculation as 3.99. However, this value was only considering the occupations of the 5f orbitals vs. other orbitals in the active space. Likewise, in Reference 6 the assigned 6d-shell occupation was very small, but these were the aggregate occupations of the active-space metal-centered 6d orbitals with minor antibonding contributions from the ligand AOs. For technical reasons, the aggregate donation to the Pu 5f, 6d, and 7s shells reflected in the occupied inactive orbitals could not be evaluated at the time, and we recognized in subsequent work that the inclusion of the inactive space density can in fact be very important. The density from the inactive orbitals is included in the present NPA and the associated LM donation is seen to be considerable even in the MC-WFT calculations and, as mentioned, similar to the results from HF theory.