Airport safety in Guernsey and Jersey is to be overseen by a new joint civil aviation regulator.
From March, Fergus Woods, Guernsey's director of civil aviation, will be responsible for safety regulation, air traffic and meteorological services.
It is hoped having a joint regulator will be more efficient and save money.
The role, which is being seen as a sign of greater co-operation between the islands, will be trialled for six months to see if it works.
Lyndon Trott, Guernsey's chief minister, said: "Working together on crucial safety issues demonstrates how both islands can benefit from co-operation in a number of different areas.
"I am hopeful that we can build on this relationship in the future."
Mr Woods is a trained pilot who worked for the European Aviation Safety Agency in Cologne before taking up his post in Guernsey in January.