However, if the Agency finds that the change is significant in an area, the Agency may designate compliance with an amendment to the type-certification basis incorporated by reference in the type-certificate, in effect at the date of the application, and any certification specification that the Agency finds is directly related, unless the Agency also finds that compliance with that amendment or certification specification would not contribute materially to the level of safety of the changed product or would be impractical.
Če pa agencija meni, da je sprememba na nekem področju pomembna, lahko določi skladnost s spremembo osnove za certifikacijo tipa, na katero se certifikat tipa sklicuje in ki je veljavna na dan vložitve vloge, ter katero koli certifikacijsko specifikacijo, ki jo agencija šteje za neposredno povezano, razen če agencija meni, da skladnost s tisto spremembo ali certifikacijsko specifikacijo ne bi pomembno prispevala k ravni varnosti spremenjenega proizvoda ali ne bi bila smiselna.