Division 3 The anaerobic digestion shall consist of controlled decomposition of biodegradable materials, which is predominantly anaerobic and at temperatures suitable for mesophilic or thermophilic bacteria. All parts of each batch shall be regularly and thoroughly moved and turned in order to ensure the correct sanitation and homogeneity of the material. During the digestion process, all parts of each batch shall have one of the following temperature-time profiles:

thermophilic anaerobic digestion at 55 °C for at least 24 hours followed by a hydraulic retention time of at least 20 days;

thermophilic anaerobic digestion at 55 °C with a treatment process including pasteurisation as described in point 1 of Section 1 of Chapter I of Annex V to Commission Regulation (EU) No 142/2011^f1;

thermophilic anaerobic digestion at 55 °C followed by composting in:

• 70 °C or more for at least 3 days,

• 65 °C or more for at least 5 days,

• 60 °C or more for at least 7 days, or

• 55 °C or more for at least 14 days;

mesophilic anaerobic digestion at 37-40 °C with a treatment process including pasteurisation as described in point 1 of Section 1 of Chapter I of Annex V to Regulation (EU) No 142/2011; or

mesophilic anaerobic digestion at 37-40 °C followed by composting in:

• 70 °C or more for at least 3 days,

• 65 °C or more for at least 5 days,

• 60 °C or more for at least 7 days, or

• 55 °C or more for at least 14 days.