Although these geographies have only recently been established (and thus past policy may or may not have explicitly targeted these places), we focus on them here because they are an example of location-specific policies that target emissions reductions in overburdened communities. Through the Community Air Protection Program (AB617), California has designated specific communities (2.7 M people, year-2010; 8.1% of the state's population) for priority in community-based air pollution monitoring and emissions reduction plans . A second policy, SB535 (10.2 M people, 30.0% of the state's population), focuses on targeting financial investments towards people living in "disadvantaged communities", identified using several environmental, socioeconomic, and public health indicators for each US Census tract in California .