America shale gas environmental regulations promulgated

U.S. Environmental Protection Agency (EPA) has released a  shale gas  exploration for new laws and regulations will be in the use of shale gas  Hydraulic fracturing  caused by air pollution control. This is the U.S.  shale gas  control environmental pollution caused by the first regulations.
As early as last July, EPA proposed the right to control fracking wells preliminary proposal, when the American Petroleum Institute and other industry associations believe that the implementation of this program schedule too tight. Therefore, EPA promulgated the regulations in the final, it will be the specific implementation was delayed more than two years, in the meantime, these wells in production methods can be reduced by burning methane and other pollutants.