Tulsa County, Okla., officials are considering a $340 million package intended to keep American Airlines and other aviation-related businesses at Tulsa International Airport.
Voters would be asked to approve the incentives in November.
The Vision for Jobs plan calls for $260 million of infrastructure improvements at the airport and an $80 million fund to attract or retain companies.
The effort would include modifications to American Airlines' maintenance hangars to accommodate larger aircraft.
Funding options include a 0.4% sales tax increase for seven years, which would bring the local sales tax to 8.9%. The tax rate would include the state's 4.5%, Tulsa's 3.16% and the county's proposed new rate of 1.26%.
The 0.4% increase was approved by voters in 2003 to attract a Boeing project to Tulsa. Boeing went elsewhere and the tax has never been collected.
Voters could also be asked to extend the current 0.6% sales tax that finances Tulsa County's Vision 2025 capital improvement plan past its scheduled 2017 demise.
County chairman John Smaligo said there are no firm plans at this point, but he supports the no-new-tax option.
Tulsa Metro Chamber president Mike Neal said many of the city-owned buildings at the airport date back to World War II. He said it is important to keep American Airlines' 7,200 workers at its Tulsa operations.