【摘要】For these reasons, the Court concludes that Asarco\'s amended complaint does not meet the requirements of Rule 15(c). Therefore, its amendment does not relate back to the filing of its original complaint and does not avoid the three year time bar set by CERCLA. The statute of limitations ran on May 12, 2011, four months before Asarco filed its first amended complaint adding Union Pacific as a party. Union Pacific\'s motion for summary judgment will, therefore, be granted.