Below are a list of documents relevant to the FPR and certification in this regard. 

Expert group documents

These are documents published by the official EU Commission Expert group on FPR 2019/1009.

EU Frequently Asked Questions on FPR 2019/1009

This document contains answers to Frequently asked questions on FPR, it can be downloaded here:
https://ec.europa.eu/docsroom/documents/50874

Labelling guidance

This document contains examples of FPR compliant labels for each PFC, it can be used by manufacturers as a starting point:
https://ec.europa.eu/transparency/documents-register/api/files/C(2021)726_0/de00000000964447?rendition=false

Notified Body coordination group

The coordination group is a forum where all Notified Bodies work together to harmonise certification procedures. Several important documents are published by this group. 

Guidelines on Modules

This document contains procedural explanations on Notified Body conformity assessment:
https://circabc.europa.eu/ui/group/36ec94c7-575b-44dc-a6e9-4ace02907f2f/library/14eb71fe-89bb-49f8-ae3d-ad51ccdb8a46/details

Minimum certificate content

This document contains the minimum certificate content for Notified Body certificates:
https://fertilizer-certification.eu/publicassets/2022n11_v2-Minimum-certificate-content-module-B-and-module-D1.docx

Contact details

Here the contact details of different Notified Bodies can be found:
https://circabc.europa.eu/ui/group/36ec94c7-575b-44dc-a6e9-4ace02907f2f/library/3f10e2bc-ba68-4920-9467-a8d9aaded246/details

Legal acts

Here you will find all the legal acts relating to FPR, including amendments and corrections, as well as a link to the consolidated version which has the most up to date requirements.

Initial legal act

The initial legal act can be downloaded here https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex%3A32019R1009

Consolidated version of the FPR 2019/1009

The consolidated version of the FPR contains all amendments and is an informative document explaining the current requirements of FPR.
It can be downloaded here https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A02019R1009-20220716

Regulation (EU) 2021/1768 - Technical progress delegated regulation

Commission Delegated Regulation (EU) 2021/1768 of 23 June 2021 amending, for the purpose of its adaptation to technical progress, Annexes I, II, III and IV to Regulation (EU) 2019/1009 of the European Parliament and of the Council laying down rules on the making available on the market of EU fertilising products (Text with EEA relevance)
https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex%3A32021R1768

Regulation (EU) 2021/2086 - Precipitated phosphate salts and derivate CMC delegated regulation

Commission Delegated Regulation (EU) 2021/2086 of 5 July 2021 amending Annexes II and IV to Regulation (EU) 2019/1009 of the European Parliament and of the Council for the purpose of adding precipitated phosphate salts and derivates as a component material category in EU fertilising products (Text with EEA relevance)
https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex%3A32021R2086

Regulation (EU) 2021/2087 - Thermal oxidation materials and derivates CMC delegated regulation

Commission Delegated Regulation (EU) 2021/2087 of 6 July 2021 amending Annexes II, III and IV to Regulation (EU) 2019/1009 of the European Parliament and of the Council for the purpose of adding thermal oxidation materials and derivates as a component material category in EU fertilising products (Text with EEA relevance)
https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex%3A32021R2087

CMC 11 delegated act

COMMISSION DELEGATED REGULATION (EU) /… supplementing Regulation (EU) 2019/1009 of the European Parliament and of the Council by laying down criteria on agronomic efficiency and safety for the use of by-products in EU fertilising products
https://ec.europa.eu/transparency/documents-register/api/files/C(2022)1437_0/090166e5e99df524?rendition=false

Correction of 25th June 2019

Corrigendum to Regulation (EU) 2019/1009 of the European Parliament and of the Council of 5 June 2019 laying down rules on the making available on the market of EU fertilising products and amending Regulations (EC) No 1069/2009 and (EC) No 1107/2009 and repealing Regulation (EC) No 2003/2003 (Official Journal of the European Union L 170 of 25 June 2019)
https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex%3A32019R1009R%2809%29

Correction of 25th June 2019

Corrigendum to Regulation (EU) 2019/1009 of the European Parliament and of the Council of 5 June 2019 laying down rules on the making available on the market of EU fertilising products and amending Regulations (EC) No 1069/2009 and (EC) No 1107/2009 and repealing Regulation (EC) No 2003/2003 (Official Journal of the European Union L 170 of 25 June 2019)
https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex%3A32019R1009R%2808%29