H.478 is a bill introduced by Representative O'Brien of Tunbridge that aims to mandate the use of compostable price look-up (PLU) stickers on produce sold by wholesale or retail sellers of food. The bill specifies that these stickers must not be made of plastic and should 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 reflects a growing concern for environmental sustainability by reducing plastic waste in the food industry. By ensuring that PLU stickers are compostable, the legislation seeks to promote eco-friendly practices among food sellers and contribute to broader efforts to minimize plastic pollution.