Listed below are links to websites where you can find information about regulations and other issues currently impacting the use of radioactive isotopes.
Information Sources
Increased Controls requirements for the radioactive materials license holders: http://nrc-stp.ornl.gov/regulationtoolbox/2005-3nrc_increasedcontrols.pdf http://www.nrc.gov/security/byproduct/ea-07-305-fingerprinting-order-for-ic-licensees.pdf
NRC Directive to the NSA on Radiation Source Use and Replacement: http://www8.nationalacademies.org/onpinews/newsitem.aspx?RecordID=11976 http://www.nrc.gov/security/nas-facts-sheet.pdf http://www.nap.edu/catalog/11976.html
Isotope production and supply: http://www.healthimaging.com/content/view/12022/89/ http://www.healthimaging.com/content/view/11960/89/ http://www.world-nuclear-news.org/NN-AECL_halts_development_of_MAPLE_project-1905082.html http://www.cbc.ca/health/story/2008/01/09/isotope-crisis.html http://www.msnbc.msn.com/id/24672101/ http://www.thestar.com/News/Canada/article/292710
Government regulation of isotope transport and tracking: http://www.gao.gov/new.items/d08598.pdf http://www.gao.gov/htext/d08598.html
OTHER http://www.healthimaging.com/content/view/11974/89/