This Typika service is a form of Pre-Sanctified Liturgy held by a deacon authorised by the local bishop, when a priest is unavailable. The deacon distributes communion to the faithful present at the service.
This Typika service is held in monasteries and sometimes in parish churches, sometimes instead of Divine Liturgy, sometimes immediately before Divine Liturgy. The text for this type of service can usually be found in the various Liturgicons.
This Typika service is a specific form of service which mirrors the Divine Liturgy. It is used when a priest is not available or when a worshipper cannot get to a church. It is led by a deacon, subdeacon, reader, chanter, or the eldest experienced layperson present, in that order, unless a bishop or priest determines another leader.