If your spouse was receiving life time Black Lung benefits and died before 2010, you had to prove that the death was caused by pneumoconiosis in order to receive survivor’s benefits. Since 2010, the Affordable Care Act (Obama Care) has amended the Black Lung Benefits Act. Now it is no longer necessary to prove causation in order to receive survivor’s benefits. If you were previously denied, you should consider refiling. See Jim Walter Resources v. Davis, No. 13-13185 (11th Cir. Sept. 12, 2014).