conjunction with the industry, began releasing well-by-well lists of hydraulic fracturing chemicals at FracFocus. Disclosure is still on a voluntary basis; companies are still not required to provide information about their hydraulic fracturing techniques and fluids that they consider to be proprietary. Lists do not include all substances used; a complete listing of the specific chemical formulation of additives used in hydraulic fracturing operations is still not currently made available to landowners, neighbors, local officials, or health care providers, let alone the public. This practice is under scrutiny. Two studies released in 2009, one by the DOE and the other released by the GWPC, discuss hydraulic fracturing safety concerns. Chemicals which can be used in the fracturing fluid include kerosene, benzene, toluene, xylene, and formaldehyde.Draft Supplemental Generic Environmental Impact Statement. Chapter 5 Natural Gas Development Activities And High‐Volume Hydraulic Fracturing. Dec.ny.gov State and local The controversy over hydraulic fracturing has led to legislation and court cases over primacy of state regulation versus the rights of local governments to regulate or ban oil and gas drilling. Some states have introduced legislation that limits the ability of municipalities to use zoning to protect citizens from exposure to pollutants from hydraulic fracturing by protecting residential areas. Such laws have been created in Pennsylvania, Ohio, and New York. Local regulations can be a dominant force in enacting drilling ordinances, creating safety standards and production regulations, and enforcing particular standards. However, in many cases state law can intervene and dominate local law. In Texas, the Railroad Commission of Texas has the authority to regulate certain industries and the specifics of their safety standards and production regulations. In this case, the state determined the zoning, permitting, production, delivery, and safety standards. In New York, local land use laws are considered in state regulations, and in Pennsylvania, the state's Oil and Gas Act superseded all local ordinances purporting to regulate gas well operations.” Additionally, Los Angeles in 2013 become the largest city in the US to pass a hydraulic fracturing moratorium. Opposition New York In November 2010, the New York State assembly voted 93 to 43, for a moratorium or freeze on hydraulic fracturing to give the state more time to undertake safety and environmental concerns. In September 2012, the Cuomo administration decided to wait until it completed a review of the potential public health effects of hydraulic fracturing before it allowed high-volume hydraulic fracturing in New