EAST PROVIDENCE, Rhode Island, May 19 -- The International Brotherhood of Teamsters issued the following news release: Approximately 215 school bus drivers, monitors and aides voted overwhelmingly over the weekend to ratify their first contract with STA/Ocean State Transit and become members of Teamsters Local 251. The five-year deal calls for significant increases in pay, new dental and vision benefits, a retirement plan with company contributions, multiple bonuses, just-cause job protections  more