Clause 10 deals with the Taking-Over of the Works, Sections, or parts of the Works. Sub-Clause 10.1 deals with the Taking-Over of the Works and Sections. Taking-Over by the Employer happens when the Works (a) pass the Tests on Completion; (b) are substantially complete; (c) any contractual requirements relating to Taking-Over have been met; and (d) the Taking-Over Certificate has been issued or is deemed to have been issued. Sub-Clauses 10.2 and 10.3 deal with deemed Taking-Over where the Employer uses part of the Works or interferes with the Tests on Completion for more than 14 days. The failure to issue a Taking-Over Certificate by the Engineer, where the Employer has taken into commercial use the Works, will amount to a breach of contract.