The Ad hoc Working Group Microorganisms will focus on matters related to biocides containing microorganisms (microbial active substances). It will support the BPC and its Working Groups during the scientific and technical peer review process in relation to the following, where appropriate:

• Approval, renewal and review of biocidal active substances;
• Inclusion of biocidal active substances into Annex I of the BPR;
• Applications for Union authorisation,
• Technical or scientific matters in relation to mutual recognition;
• Any other generic or specific methodological questions that arise from the operation of BPC in relation to microorganisms;
• Identification of the needs to revise the existing guidance documents on active microorganisms and contribution to the revision, where appropriate.

Chair of the Working Group: Mari Raulio