Neither appears to allow numerical notation.
FIDE requires algebraic notation.
Article 8: The recording of the moves
8.1.1
In the course of play each player is required to record his own moves
and those of his opponent in the correct manner, move after move, as
clearly and legibly as possible, in the algebraic notation (Appendix
C), on the ‘scoresheet’ prescribed for the competition.
The USCF prefers algebraic, but also permits descriptive or "computer notation".
- The Recording of Games15A. Manner of keeping score.In the course of play each player is required to record the game (both the player’s
and the opponent’s moves), move after move, as clearly and legibly as
possible, on the scoresheetprescribed for the competition. Algebraic
notationis standard, but descriptive or computer notation is
permitted.
I cannot find a definition for "computer notation" in their rules.