In Paul Turner's Blog by Paul Turner

Q:  I have questions concerning Viaticum. Can a deacon or extraordinary minister of Holy Communion give Viaticum? If so, can they administer the Apostolic Pardon? Thanks

A:  Here’s an article I wrote several years ago: (Sorry, the formatting is not great right now.)  In short, yes a deacon and communion minister may administer viaticum, but only a priest gives the Apostolic Pardon.