Canon 833

1. The local hierarch can give to any Catholic priest the faculty of blessing the marriages of the Christian faithful of an

Eastern non-Catholic Church if those faithful cannot approach a

priest of their own Church without great difficulty, and if they

spontaneously ask for the blessing as long as nothing stands in

the way of a valid and licit celebration. 2. Before he blesses

the marriage, the Catholic priest, if he is able, is to inform

the competent authority of those Christian faithful of the fact.