How long does the Adjudicator have, after giving his decision to the Parties, to correct clerical mistakes or ambiguities?

How long does the Adjudicator have, after giving his decision to the Parties, to correct clerical mistakes or ambiguities?

The Adjudicator may correct any clerical mistakes or ambiguities within fourteen days of giving his decision to the Parties (see Clause W2.2(12)).