Erratum for the Research Article “Of the first five US states with food waste bans, Massachusetts alone has reduced landfill waste”

In the Research Article “Of the first five US states with food waste bans, Massachusetts alone has reduced landfill waste” (13 September 2024, 10.1126/science.adn4216) by F. Z. Anglou et al., the authors identified some errors while preparing a new manuscript using the same original data. These errors occurred early in the codebase, and therefore fixing them required updates to the code; final sample; main text; Figs. 1, 2, and 3; and supplementary materials. The main finding of the work remains unchanged, but the exact point estimates have changed: Massachusetts continues to show a significant reduction in disposal (–10.4%, rather than the previously reported –7.3%; both P < 0.05), whereas results for other states remain nil. One supplementary robustness check on methane emissions is now suggestive rather than significant, reflecting the shorter preintervention emissions panel (2010 versus 2006 in the main disposal data). The principal corrections involve fixing a coding error related to midyear ban implementation and more consistently accounting for non–municipal solid waste, imports and exports, and incineration across states.