51 U.S. Code § 71102 - Requests for information
Requests for informationThe Administrator shall issue requests for information on—
a low-cost space mission with the purpose of rendezvousing with, attaching a tracking device, and characterizing the Apophis asteroid; and
a medium-sized space mission with the purpose of detecting near-Earth objects equal to or greater than 140 meters in diameter.
 So in original. The comma probably should be preceded by “to”.