RNA polymerase is the name for a family of protein complexes that use DNA as a template to synthesize complementary RNA. There are eukaryotic and prokaryotic version of this complex, and different versions are recruited in our cells depending on what class of RNA is being made.

In any event, these are all genes, that are transcribed and translated like any other.

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https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6095464/#:~:text=The%20Escherichia%20coli%20RNA%20polymerase,ribonucleotide%20(rNTP)%20as%20substrate.

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https://www.ncbi.nlm.nih.gov/books/NBK545212/