Thanks to sharp-eyed fellow law librarian Brian Huddleston who noticed that the Lexis interface now shows that the US Code has a new Title, Title 51, "National and Commercial Space Programs". Title 51 is now included in the Lexis federal collection, along with its 7 Subtitles. As of this morning it hadn't been added to Westlaw. The new Title was created by Public Law 111-314, signed by President Obama on Dec. 18. A page further explaining the bill is available from the Office of the Law Revision Counsel (the people who prepare and publish the US Code, where laws are codified by subject matter).