NEW YORK–(BUSINESS WIRE)–Kroll Bond Rating Agency (KBRA) assigns a long-term rating of AAA with a Stable Outlook to the Commonwealth of Massachusetts’ Commonwealth Transportation Fund Revenue Bonds (Rail Enhancement & Accelerated Bridge Programs), 2018 Series A. The long-term AAA rating and Stable Outlook also applies to all of Massachusetts’ $2.59 billion outstanding Commonwealth Transportation Fund Revenue Bonds, except for bonds backed by a letter of credit or liquidity facility.