With some keywords provided by Larry Mayer, I found out the following:
1. On July 23,2007 the House of Representatives passed H.R. 2400, the Ocean and Coastal Mapping and Integration Act.
2. This act will direct NOAA to establish an integrated Federal ocean and coastal mapping plan
3. This is supposed to increase the efficiency of mapping efforts and reduce redundancy
4. Latest Major Action: 7/24/2007: Referred to Senate committee. Status: Received in the Senate and Read twice and referred to the Committee on Commerce, Science, and Transportation. (http://www.washingtonwatch.com/bills/show/110_HR_2400.html#toc3)
Related to this, there is an IOCM (Integrated Ocean and Coastal Mapping) working group that is co-chaired by Jeff Lillycrop, Army Corps of Engineers. See the comments to hear more about it.