If my 14-year-old son goes with the coach and the team to Bulgaria, do I need ...?

The consent of one parent is sufficient.

Children under the age of 16 may cross the border with the following accompanying persons:

1. One of the parents - if there is a birth certificate of the child (without the need for notarized consent of the second parent).

2. Other relatives (grandmother, grandfather, adult brother or sister, stepmother or stepfather) - in the presence of a child's birth certificate and a document confirming family ties (without the need for notarized consent).

3. Other persons who are not relatives of the child - on the condition of a written statement of one of the parents, which was certified by the guardianship authority. It is also necessary to have a child's birth certificate (or a document containing information about the person), which will allow the State Border Service of Ukraine to allow the crossing of the state border if the child does not have a passport of a citizen of Ukraine.