As one of the most expensive transportation projects in the United States, the construction of the high-speed rail system has significant implications for the State's environment, its small and disadvantaged businesses, and its economy. However, we identified several ways that the Authority can better measure and report on these impacts. The Authority's sustainability policy has relevant goals to limit the negative environmental impacts of the high-speed rail system, but it does not sufficiently focus on the environmental impacts of construction activities. Additionally, the Authority has not collected complete and accurate data on the environmental impact of its construction activities, and thus far it has not comprehensively measured construction impact trends and set targets for future construction. The Authority reports consistently on its contracting with small, disabled veteran, and disadvantaged businesses, having set goals for the percentage of its total expenditures that will go to those businesses. However, its reporting could be more complete and transparent, as that reporting has omitted $930 million in contracts. In contrast, although the Authority faces some limitations that may affect the precision with which it estimates the overall economic impact of its activities in the Central Valley and elsewhere, it has appropriately disclosed these limitations as part of its reporting.