Versions of See prior versions of a law on LawServer 2024 California Health and Safety Code 39047.2 – “PM2.5” means particulate matter 2.5 microns and smaller in size. 2023 California Health and Safety Code 39047.2 – “PM2.5” means particulate matter 2.5 microns and smaller in size. 2022 California Health and Safety Code 39047.2 – “PM2.5” means particulate matter 2.5 microns and smaller in size. 2021 California Health and Safety Code 39047.2 – “PM2.5” means particulate matter 2.5 microns and smaller in size. 2020 California Health and Safety Code 39047.2 – “PM2.5” means particulate matter 2.5 microns and smaller in size. 2019 California Health and Safety Code 39047.2 – “PM2.5” means particulate matter 2.5 microns and smaller in size. 2017 California Health and Safety Code 39047.2 – “PM2.5” means particulate matter 2.5 microns and smaller in size. 2016 California Health and Safety Code 39047.2 – “PM2.5” means particulate matter 2.5 microns and smaller in size. 2015 California Health and Safety Code 39047.2 – “PM2.5” means particulate matter 2.5 microns and smaller in size. 2014 California Health and Safety Code 39047.2 – “PM2.5” means particulate matter 2.5 microns and smaller in size. 2013 California Health and Safety Code 39047.2 – “PM2.5” means particulate matter 2.5 microns and smaller… 2010 California Health and Safety Code 39047.2 2009 California Health and Safety Code 39047.2