S&P Global Ratings affirmed its 'AA' long-term rating on Jefferson Parish School Board, La.'s limited-tax bonds based on the application of its "Issue Credit Ratings Linked to U.S. Public Finance Obligors' Creditworthiness" criteria, published Jan. 22, 2018, on RatingsDirect. The outlook is stable. The bonds are secured by a first-lien claim on revenues generated by a 2.91-mill ad valorem tax, levied in perpetuity, on all taxable property within the school board's boundaries. The millage rate will be adjusted in each reassessment year so that property value increases or decreases as a result of the reassessment do not affect the amount of revenues collected. We rate the bonds on par with our view of the board's general creditworthiness, as the taxing