Canon 21 Deposed clergy who repent may keep the clerical tonsure

Those who become liable on canonical charges, and for this reason are subjected to complete and perpetual deposition, and are thrust out into the place of the laymen: if, looking of their own will towards conversion, they renounce the sin through which they have fallen from grace, and make themselves wholly strangers to it, let them be tonsured in the form of the clergy; but if they do not choose this of their own free will, let them grow their hair like the laymen, as having preferred the way of life in the world to the heavenly life.