Clarify that the proper version of the Complex Model that is to be used with an augmentation is the version that was in effect at the time the augmentation was approved. The preamble and regulations are inconsistent on this issue, and confusion arises in the term "the fuels," which is meant to apply to fuels that are produced before the augmentation is approved.
The proper version of the Complex Model that is to be used with an augmentation is the version that was in effect at the time the augmentation was approved. (7/1/94)
This question and answer was posted at List of Reformulated Gasoline and Anti-Dumping Questions and Answers: July 1, 1994 through November 10, 1997 (pdf)