The Environmental Protection Agency (EPA) had a deadline of April 13 to impose the first-ever greenhouse gas limits on new power plants, but they did not finalize the proposal on time. EPA is in the process of altering the rule to make sure it can withstand any legal challenges that may come its way. The rule if implemented as it was written would require new power plants to emit no more than 1,000 pounds of carbon dioxide per megawatt hour of electricity produced. EPA is debating the possibility of establishing separate standards for coal-fired power plants and gas-fired power plants. There is no timetable for when EPA will announce their next move.