You will need his and the courts permission to take the child away if there is a court order for visitation or custody. The court order has to be followed.
because he won't know where you are at
yes because he only has the right to give permission to let his child leave the state
You will have to fill out the name change petition within your state. Also, make sure you have the other biological parent's permission because they will need to agree to the change or present their case in court why they do not want the child's name to be changed.
You don't need permission for anything unless it's in a decree, but unless you have a remarkable hiding place, expect to be dragged to court eventually.
If you are a minor you pretty much have to go with your parent if they move. You don't need permission from your child's father, although he might get angry and try to take you to court over it.
In most cases you will indeed need permission from your ex-husband to take your child to live in New Zealand. Most states require parents seek permission and consent before taking their child out of state or out of the country.
Yes, you may need permission to travel with your child, especially if you are traveling internationally. It is recommended to carry a notarized letter of consent from the child's other parent or legal guardian to avoid any issues at border crossings.
If there is a court order for custody, visitation or child support she will need his permission. See related question link.
you need to get a license like a permission so you can fish
The parents need to know where their child is and who they are with. This protects the child and the person who takes the child someplace.
It is the ancestry, and not the name, which matters.