England & Wales: Religious or belief ceremonies must be performed in a registered building by a registered officiant . Online ordination alone is not sufficient for legal marriage; compliance with local registration procedures is required.
Scotland & Northern Ireland: Certain belief ceremonies, such as humanist marriages, are legally recognized — but in other regions, e.g., England & Wales, only registered buildings/officiants are permitted .
Ireland: Civil partners or religious ministers must register with the Registry of Solemnisers; private online ordination without registration does not confer automatic legal authority.
Summary Advice for the UK & Ireland: MEOC credentials serve as spiritual validation, not legal authority. If you wish to officiate legally, check your local registry for official recognition or house ceremony licensing.