$256,375,000 Massachusetts Bay Transportation Authority senior sales tax bonds, variable rate demand obligations, 2008 series A: $131,910,000 2008 series A-1 and $124,465,000 2008 series A-2: dated: date of delivery, price: 100%, CUSIP: 2008 series A-1: 575579TJ6, 2008 series A-2: 575579TK3, due: 2008 series A-1: July 1, 2021, 2008 series A-2: July 1, 2026