Division 11 Eurocae ED-120 Safety and Performance Requirements Standard for Air Traffic Data Link Services in Continental Airspace, published in May 2004, including:F1F2

for operators:

• Change 1, published in April 2007, and Change 2, published in October 2007, or

• Change 1, published in April 2007, Change 2, published in October 2007, and Change 3, published in September 2019;

for ATS providers:

• Change 1, published in April 2007, Change 2, published in October 2007, and Change 3, published in September 2019.