Frequent Questions

Is tertiary butyl alcohol (TBA) an acceptable alternative oxygenate to MTBE?

Tertiary butyl alcohol may be blended in amounts permitted under its section 211(f) waiver. There are several oxygenates available other than the two most common, MTBE and ethanol, and these oxygenates may be legally used if blended in the type and amount specified under EPA's "substantially similar" rule and any section 211(f) waiver than may apply. Parties needing further information about the legality of a particular oxygenate should contact the Field Operations and Support Division Fuels Team at (202) 233-9050.(8/29/94)

This question and answer is posted at The original was posted in the Q&A posted on 8/29/94 which can found at" See Question ID 3857 for RFG (Taken from the first question on
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