New York City requires its residents and visitors to apply for a Parks Special Event Permit when organising events in the city parks that host more than 20 participants. The special permits are issued for a fee of 25 USD/permit. The Department of Parks and Recreation has estimated that in the fiscal year of 2018, event fees would constitute a little over 6% of their total revenue estimates (sources: (NYC Parks n.d.); (Mark-Viverito and Levine 2017))  .