Creates a new category of tax rules for bonds used to finance or refinance professional sports stadiums by adding a defined term "professional stadium bonds" to the Internal Revenue Code and applying the new rules to bonds issued after the law takes effect. The change establishes that stadium-related bonds issued after enactment must follow the newly added statutory requirements.

This affects municipal and state issuers that finance stadium projects, private teams and developers that rely on bond financing, and investors who buy those bonds. The precise tax and compliance effects depend on the substantive requirements in the new paragraph (e.g., tax-exempt status, limitations, reporting) which are introduced by the provision and apply to future issuances only.