One Last Obstacle

Josh is well on his way to Haiti when the overseeing group, GPM, comes back and says that they need Josh's father's signature.

The church is being the go-between. I explain that his father has never had custody. GPM comes back with -- they still need his signature and permission.

What THE heck?! I know they are just covering their financial @$$ from being sued, but how can the non-custodial parent sue? Does he really have any rights in this area?