Article 4 Rules and obligations regarding certificates governed by Article 3
1 The certificates governed by Article 3 of this Regulation are subject to the rules applicable to them in accordance with Regulation (EU) 2018/1139 and the relevant implementing and delegated acts adopted by virtue of that Regulation or of Regulation (EC) No 216/2008, in particular Commission Regulation (EU) No 748/2012.
Commission Regulation (EU) No 748/2012 of 3 August 2012 laying down implementing rules for the airworthiness and environmental certification of aircraft and related products, parts and appliances, as well as for the certification of design and production organisations (OJ L 224, 21.8.2012, p. 1).
2 The Agency shall have the powers established in Regulation (EU) 2018/1139 and in the relevant implementing and delegated acts adopted under that Regulation and under Regulation (EC) No 216/2008 with regard to entities having their principal place of business in a third country.