Until 1972, the acolyte was the holder of the highest of four minor orders. By Pope Paul VI’s motu proprio Ministeria quaedam of 15 August 1972, the term “minor orders” has been replaced by that of “ministries”. Two such ministries, those of reader and acolyte are to be kept throughout the Latin Church. A prescribed interval, as decided by the Holy See and the national episcopal conference, is to be observed between receiving them. Candidates for diaconate and for priesthood must receive both ministries and exercise them for some time before receiving holy orders. The two ministries are not reserved solely for candidates for holy orders, but can be conferred only on men. The ministries are conferred by the ordinary: either a bishop or, in the case of clerical religious institutes, a major superior.
The motu proprio assigned to the acolyte the functions previously reserved for the subdeacon, and national episcopal conferences are free to use the term “subdeacon” in place of that of “acolyte”. The functions of the acolyte are specified in the motu proprio, and have been indicated also in the General Instruction of the Roman Missal, no. 98, which says: “The acolyte is instituted to serve at the altar and to assist the priest and deacon. In particular, it is his responsibility to prepare the altar and the sacred vessels and, if it is necessary, as an extraordinary minister, to distribute the Eucharist to the faithful. In the ministry of the altar, the acolyte has his own functions (cf. nos. 187-193), which he must perform personally.”
The General Instruction of the Roman Missal adds: “In the absence of an instituted acolyte, lay ministers may be deputed to serve at the altar and assist the priest and the deacon; they may carry the cross, the candles, the thurible, the bread, the wine, and the water, and they may also be deputed to distribute Holy Communion as extraordinary ministers.”
The term “instituted acolyte”, which does not appear in the 1972 motu proprio, is used in the General Instruction of the Roman Missal to distinguish those on whom the ministry has been conferred with the prescribed rite from others who, while sometimes called acolytes, are less ambiguously referred to as altar servers. While, in the absence of an instituted acolyte, an altar server (male or female) may perform most of an acolyte’s functions, some are reserved for an instituted acolyte alone. Thus only an instituted acolyte is authorized to purify, wipe and arrange the sacred vessels after Holy Communion.