De or het salarisherziening?

The correct Dutch article is:

de salarisherziening

Rule Words ending in -ing: almost always de. See the rule

How to use salarisherziening

the salarisherzieningde salarisherziening
this salarisherzieningdeze salarisherziening
that salarisherzieningdie salarisherziening
our salarisherzieningonze salarisherziening
your salarisherzieningjouw salarisherziening
every salarisherzieningelke salarisherziening
which salarisherziening?welke salarisherziening?
a big salarisherziening / the big salarisherzieningeen grote salarisherziening, de grote salarisherziening