After giving a notice of adjudication, how long does a Party have to refer the dispute to the Adjudicator?

NEC3 and NEC4 Contracts
1

After giving a notice of adjudication, how long does a Party have to refer the dispute to the Adjudicator?

2

After giving a notice of adjudication, a Party refers the dispute to the Adjudicator within seven days (see Clause W2.3(2)).