ΔE 16.3, loose: different enough that you should pick on purpose. Nurgling Green is a little lighter, much more saturated, cooler than US Interior Yellow Green.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Nurgling Green is a little lighter, much more saturated, cooler than US Interior Yellow Green.
The same difference applies the other way round: US Interior Yellow Green is a little darker, much more muted, warmer.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See US Interior Yellow Green on the colour wheel See Nurgling Green on the colour wheel
All matches: US Interior Yellow Green equivalents · Nurgling Green equivalents