See the below example of a marking issued by NMi Certin UK (TIC) Ltd. in 2022 for module A2, D or D1 certificates.

The number 8506 will be replaced with another number if another Approved Body is involved in the production control phase. The UK marking (UKCA symbol) has to be at least 5 mm high.

The square around the M and the year of affixing must be as high as the UK marking.