Alleviating Spaceport Traffic by Rewarding Operators Act of 2023

S 3331 creates a pilot program to provide federal grants to licensed spaceport operators for improving transportation infrastructure near launch/reentry sites. Operators receive grants based on past launch activity ($250,000 per licensed launch, $100,000 per permit), with a $2.5 million annual limit per operator. Supplemental grants (up to 50% of the primary grant) are available if states or private entities match funding. The program, funded up to $20 million annually, expires on October 1, 2028, and applies only to infrastructure directly supporting transportation safety for launches.