PILOT agreements on library tax levies

I am looking for general information on the possible impact of Payment in Lieu of Taxes (PILOT) agreements on library tax levies. I believe that in some instances public libraries are parties to PILOT agreements. In other cases, library levies are stated or implied exceptions to PILOT agreements; and the company with the PILOT agreement pays the library levy like any other taxpayer; as a separate payment based on the property’s assessed value. Are there differences based on the type of public library? Or differences based on the taxing entity: special district, town or school district? Are there provisions in the legislation authorizing PILOT agreements or in Real Property Tax Law that impact library taxes and PILOT agreements?