Many of these proposals are often duplicative and tied to a news event.
But it can hardly be said that the duplicative process is of a distinctively grammatical significance in English.
Many of these forms are needed for vital government functions, but others are duplicative, overly complex or obsolete.
1620s, "to double," from Latin duplicatus, past participle of duplicare (see duplicate (adj.)). Meaning "make an exact copy" is from 1640s (implied in duplicated). Related: Duplicating. The noun is first recorded 1530s.