11 August 2022, Official Journal of the European Union: On 9 August, the European Commission issued Commission Implementing Decision (EU) 2022/1390, amending the Decision(2011/163/EU) on the List of measures to monitor certain substances and residues thereof in live animals and animal products in accordance with Article 29 of Council Directive 96/23/EC, Article 2A, 2B, 2C, 2D and 2E are inserted after Article 2 of Decision 2011/163/EU, and symbols such as "Δ", "O", "X", "M" and "P" are used to mark the corresponding products in the attached table to reflect the approval of the EU import monitoring plan for a certain type of products from a certain country, as follows:

Third countries not having presented a residue-monitoring plan for animals and animal products but, based on third country’s request, intending to export to the Union animal products prepared by using raw material of animal origin obtained from a Member State or third country that has provided a residue monitoring plan in accordance with Article 29 of Directive 96/23/EC are marked with “Δ” in the table in the Annex to this Decision for triangular trade.
Third countries not having presented a residue-monitoring plan for bovine, ovine/caprine, porcine, equine or poultry animals but, based on third country’s request, intending to export composite products to the Union, using processed animal products from those species, obtained from a Member State or an approved third country are marked with an “O” in the column only for the relevant animal species in the table in the Annex.
based on third country’s request, third countries marked with an “X” in either of the categories aquaculture products, milk or eggs in the table of the Annex are marked with an “O” in that table for the remaining of those categories.
All third countries listed for live, chilled, frozen or processed bivalve molluscs, echinoderms, tunicates and marine gastropods in Annex VIII to Implementing Regulation (EU) 2021/405 are marked with an “M” in the table in the Annex to this Decision for molluscs.
All third countries producing composite products from processed products derived from molluscs, insofar as the processed bivalve molluscs either originate from Member States or third countries listed in Annex VIII to Implementing Regulation (EU) 2021/405 are marked with a “P” in the column “Aquaculture” in the table in the Annex to this Decision for processed products derived from molluscs.’;

For more details, see
https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32022D1390&qid=1660611130583