After making an agreement

チルドレン・ファースト
It is best to have your agreement for visitation or other contact with a child notarized by a notary public. If you have a notarized document, it will be easier for you to go through the enforcement process in case of not performing as agreed.

For more information on having your agreement notarized, you should consult your local notary public office. Click here for the website of the Japan National Notaries Association.