Mehlville School District officials have finalized the school start and end times for the three-tier bus system for students that will begin with the 2013-2014 school year.

The Board of Education recently voted unanimously to operate a three-tier bus system instead of the four-tier system that has been in effect since the 2011-2012 school year.

• The first tier will begin at 7:20 a.m. and end at 2:05 p.m. Schools include: Mehlville and Oakville senior highs and Buerkle Middle.

• The second tier will begin at 8:05 a.m. and end at 2:50 p.m. Schools include: Bernard Middle, Washington Middle, Oakville Middle, Blades Elementary and Beasley Elementary.

• The third tier will begin at 8:50 a.m. and end at 3:35 p.m. Schools include: Bierbaum Elementary, Point Elementary, Forder Elementary, Hagemann Elementary, Oakville Elementary, Rogers Elementary, Trautwein Elementary and Wohlwend Elementary.

At the John Cary Early Childhood Center, the morning session will take place from 8:15 to 11:15 a.m. and the afternoon session will take place from 12:30 to 3:30 p.m.

Early childhood times for Forder, Hagemann, Point, Rogers and Wohlwend have yet to be determined.