42 U.S. Code § 18387 - Near-Earth object survey and policy with respect to threats posed
(a) Policy reaffirmation
The Director of the OSTP shall implement, before September 30, 2012, a policy for notifying Federal agencies and relevant emergency response institutions of an impending near-Earth object threat if near-term public safety is at risk, and assign a Federal agency or agencies to be responsible for protecting the United States and working with the international community on such threats.
Source(Pub. L. 111–267, title VIII, § 808,Oct. 11, 2010, 124 Stat. 2834.)