Today, the Drug Enforcement Agency (DEA) published an Interim Final Rule regarding electronic prescriptions for controlled substances on the Federal Register. This is now open for comment, and then we can anticipate that it will get finalized.
Several websites seem to have the wrong link to the PDF, so here's the correct link that will open up the Interim Final Rule: http://edocket.access.gpo.gov/2010/pdf/2010-6687.pdf
It's an 85-page PDF and I can guarantee it will put you to sleep tonight.
Federal Register Vol 75, No. 61 Wednesday, March 31, 2010