...S&P Global Ratings affirmed its '###' long-term rating on Poplar Bluff Regional Transportation Development District, Mo.'s series 2012 sales tax revenue bonds. The outlook is stable. Securing the bonds are net revenue from a 1% sales tax within Area A, a 396-acre section of the district containing most of the city's retailers, paid to the bond trustee, UMB Bank N.A, subject to annual appropriation and pursuant to a trust indenture. Monthly sales tax payments to the bond trustee for debt service and annual costs are net of an annual $65,000 deposit into the operating fund. The district imposes the sales tax on all retail sales in the district, subject to taxation pursuant to the Revised Statutes of Missouri, with certain exceptions listed in the Transportation Development District Act, including: + The sale or use of motor vehicles, trailers, boats, or outboard motors; + The sale of electricity or electrical current, water, and gas, either natural or artificial; and + The sale of services...