In this chapter—

((1)) the definitions in apply.

((2)) “commercial space transportation infrastructure development” includes—

((A)) construction, improvement, design, and engineering of space transportation infrastructure in the United States; and

((B)) technical studies to define how new or enhanced space transportation infrastructure can best meet the needs of the United States commercial space transportation industry.

((3)) “project” means a project (or separate projects submitted together) to carry out commercial space transportation infrastructure development, including the combined submission of all projects to be undertaken at a particular site in a fiscal year.

((4)) “project grant” means a grant of an amount by the Secretary of Transportation to a sponsor for one or more projects.

((5)) “public agency” means a State or an agency of a State, a political subdivision of a State, or a tax-supported organization.

((6)) “sponsor” means a public agency that, individually or jointly with one or more other public agencies, submits to the Secretary under this chapter an application for a project grant.