H.478 is a proposed bill that mandates that any wholesale or retail seller of food must use compostable price look-up (PLU) stickers on produce. The bill specifies that these stickers cannot be made of plastic and must be composed of natural fibers or meet industrial compost quality standards, utilizing food-grade adhesive for attachment. The implementation of this requirement is set to take effect on July 1, 2028, aligning with the European Union's planned adoption of compostable PLU stickers.

The bill aims to reduce plastic waste in the food industry and promote environmentally friendly practices. By ensuring that PLU stickers are compostable, the legislation seeks to encourage sustainability in agricultural practices and contribute to broader efforts to minimize the environmental impact of single-use plastics.