Driven by increasing pressure on local budgets, some municipalities have sought a reexamination of the property-tax exemption for nonprofit organizations provided by state law. The property tax is a major source of revenue for many municipalities, and large nonprofits such as universities and hospitals may own significant portions of land within a given city. Some cities have begun asking nonprofits for voluntary PILOTs, or Payments in Lieu of Taxesan attempt to collect a portion of the property tax revenue which would be owed if nonprofits were not tax-exempt. However, concerns from nonprofit organizations have arisen regarding PILOTs.