# Prop. Treas. Reg. § 40.9999-1: 

Proposed regulation, not in force. PS-66-93, 94-25763, published 1994-10-19 <https://www.federalregister.gov/documents/1994/10/19/94-25763/gasoline-and-diesel-fuel-excise-tax-rules-relating-to-gasohol-tax-on-compressed-natural-gas>.

Par. 5. In Sec. 40.9999-1, Example 3 is amended by removing the language ``diesel fuel'' each place it appears (including the heading) and adding ``aviation fuel'' in its place.