Campaigners are calling for tougher seatbelt laws - on the tenth anniversary of the M40 minibus crash which killed 12 schoolchildren and their teacher.
An inquest heard the minibus had no passenger seatbelts
The group, from Hagley Roman Catholic High School, in Worcestershire, died as they returned from a Proms concert in London.
Just two girls survived the crash which set the minibus on fire.
An inquest into the deaths heard the vehicle did not have passenger seatbelts and new legislation making seatbelts compulsory on coaches and minibuses followed.
Roger Vincent, from the Royal Society for the Prevention of Accidents (Rospa), said he does not think the law goes far enough.
He said: "Even though it's compulsory to have seatbelts on minibuses it is not compulsory that they have to be worn.
"We would like to see schools and parents doing all they can do to make sure children and everyone else on minibuses and coaches wear their seatbelts at all times."
The school will open its chapel for quiet prayer on Tuesday and a memorial mass led by the Archbishop of Birmingham, Vincent Nichols is to be held on Thursday.