Each passenger must fill in a form associated with each trip that is personal and non-transferable. Make sure you fill out this form and sign it before flying to Spain. Remember that, after signing the FCS form, you will receive a QR Code associated with your trip, which you must carry with you on your mobile phone or printed on paper to pass the airport sanitary control.
To protect your health, the Government of Spain has implemented a series of measures to protect the general public’s health, including health control of passengers upon arrival in Spain. From the website Spain Travel Health you can fill out the health control form and obtain your QR Code, to show it at the control points upon arrival in Spain.