Office of Federal Procurement Policy 
https://www.whitehouse.gov/omb/procurement_default

Federal Register Online 
http://www.access.gpo.gov/su_docs/aces/aces140.html

Acquisition.gov
https://www.acquisition.gov/

FAR Council
https://www.whitehouse.gov/omb/procurement_far_council

Defense Acquisition Regulations Directorate 
http://www.thecre.com/fedlaw/legal25a/dars.htm

GSA Acquisition Gateway 
https://hallways.cap.gsa.gov/login-information

GSA Office of Government-wide Policy 
http://www.gsa.gov/portal/category/21396

GSA Office of Acquisition Policy 
http://www.gsa.gov/portal/category/101099     

Office of the Under Secretary of Defense for Acquisition, Technology & Logistics
http://www.acq.osd.mil/

Office of Manufacturing and Industrial Base Policy 
http://www.acq.osd.mil/mibp/ 

Director of Defense Procurement
http://www.acq.osd.mil/dpap/
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Defense Contract Management Agency
http://www.dcma.mil/

Defense Contract Audit Agency
http://www.dcaa.mil