Combat Methamphetamine Enhancement Act of 2008 - Amends the Controlled Substances Act to require all regulated retail sellers of certain listed chemical products used to make methamphetamine to submit self-certifications of compliance with the requirements of such Act to the Attorney General.
Requires the Attorney General to develop a list of all self-certified individuals and make it publicly available on the website of the Drug Enforcement Administration (DEA).
Prohibits distributors of listed chemical products from selling such products to individuals not currently registered with the DEA.
Impose civil penalties for negligent failure to self-certify as required by this Act.