Government Information (Public Access) Act 2009

If a material variation is made to a contract that would affect the particulars that are required to be included in the government contracts register in relation to the contract, the particulars included in the register are to be amended to reflect the variation within 45 working days after the variation becomes effective.

If a material variation is made to a contract a copy of which is required to be included in the register, a copy of the variation or the varied provisions is to be included in the register within 45 working days after the variation becomes effective.