Can adult children waive child support arrearages?

Question Details:

I wanted to know if your child is over 21years old and you owe back child support, can the child petition to have the arrears waived? In my case my sons are 20 and 22 years old. Both feel it is unnecessary that their mother is holding on to the past by enforcing the child support order. My 20 year old will be living with me over the summer. The only person insisting on arrears is their mother. If the arrears are for the kids shouldn't they be able to petition the court to drop the child support? Can you get child support for adult children? Important Notice