estimated level of receipts plus interest
(2) Estimated level of receipts plus interest .— The term “estimated level of receipts plus interest” means the level of excise taxes and interest credited to the Airport and Airway Trust Fund under section 9502 of the Internal Revenue Code of 1986 for a fiscal year as set forth in the President’s budget baseline projection as defined in section 257 of the Balanced Budget and Emergency Deficit Control Act of 1985 ( Public Law 99–177 ) (Treasury identification code 20–8103–0–7–402) for that fiscal year submitted pursuant to section 1105 of title 31 , United States Code.