Washington, D.C. -- Medical marijuana patient advocacy group Americans for Safe Access (ASA) filed a petition with the federal court of appeals today in a widely watched case that seeks to reclassify marijuana for medical use. Plaintiffs in the case ASA v. Drug Enforcement Administration are requesting a rehearing before the original panel, as well as seeking full (en banc) review by the United States Court of Appeals for the D.C. Circuit. On January 22nd, the D.C. Circuit granted plaintiffs standing -- the right to sue the federal government to reclassify marijuana -- but, in a 2-1 ruling, denied the appeal on the merits by setting a new, virtually-impossible to meet standard for assessing medical efficacy.