The Hoover school board Thursday approved a schedule of school bus fees.  Families will be charged based on income.  Lower fees will be charged to families of students who qualify for discounted and free lunches.  Some will pay less than $8 per month.  But families who do not have children in those programs will be charged more than $40 dollars per month, per student.  The fees max out at three bus riders.  Discounts will be offered for multiple riders.   The school system came up with the fee proposal, with input from the Obama administration.  A previous plan to eliminate bus service altogether was scrapped, after objections from the public and  the Obama administration.