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Can an FDES published in 2019 (version A1) still be used?

1111 questions from 157 articles available in English.

No. Since 1 November 2022, EN 15804+A2 is the only accepted version for a new or renewed declaration, and A1 declarations have been removed from INIES: on 1 January 2026 for those verified in 2020, and on 1 July 2026 for those verified in 2021 and 2022. For a project whose structural works or insulation relied on A1 declarations, they must be replaced by their A2 version or another valid declaration; otherwise the calculation switches to penalising DED.

Read the source article: EPD, FDES, PEP, LCA: what is the difference in RE2020?