(3)Regulation (EU) 2019/876 amended Regulation (EU) No 575/2013. In particular, Articles 429, 429a and 429b were replaced by the new Articles 429 to 429g. That amendment included, inter alia, the introduction in Article 429c of Regulation (EU) No 575/2013 of the obligation for institutions to calculate the exposure value of derivative contracts in accordance with the mark-to-market method known as the Standardised Approach – Counterparty Credit Risk (SA-CCR), which replaced the Current Exposure Method or ‘CEM’ with effects on the ex-ante contribution periods as of 2023.