Revision of the requirements for live vaccine processing; confirmation of effective date. Direct final rule; confirmation of effective date

The Food and Drug Administration (FDA) is confirming the effective date of March 18, 2008, for the direct final rule that appeared in the Federal Register of October 18, 2007 (72 FR 59000). The direct final rule amends the biologics regulations by providing options to the existing requirements for the processing of live vaccines. This document confirms the effective date of the direct final rule.