Yes, it’s an officially recognized day.
Compost can be made from kitchen scraps, lawn clippings, newspapers, leaves wood chips, coffee grinds and even meat or fish products (when done properly) – just not processed foods.
Nutrient rich compost is a natural fertilizer that boosts soil health, prevents runoff and groundwater from chemical toxins, and insect friendly which means more pollinators and beneficial insects boosting the health of your yard and garden plants.
For more information :
EPA Home Composting: https://www.epa.gov/recycle/composting-home#basics
UNL Extension Vermiculture: https://lancaster.unl.edu/pest/resources/vermicompost107.shtml