SECTION 130

(1) Public contract provisions may be changed only through contract amendments. (2) However, contract amendments may not change the purpose, the alottee, the payment currency, or the price revision or updating formula. (3) Contract amendments shall be examined and adopted by the tenders boards having jurisdiction over the initial contract. (4) The overall amount of contract amendments shall not exceed 30 (thirty) per cent of the initial contract amount. (5) Service orders having an incidence on prices or time limits shall constitute the contractual management documents of a contract and shall be issued under the following conditions: (a) where a service order is likely to cause contract price overrun, the signing thereof shall be subject to evidence of financing by the Project Owner; (b) in case of contract price overrun, changes may be made only through a contract amendment, and the additional services to be delivered may be paid only after signature of the contract amendment; (c) service orders for additional delivery of services may be signed by the Project Owner or the Delegated Project Owner and regularized subsequently through a contract amendment, provided the financial incidence is less than 10 (ten) per cent of the contract amount. (6) In any case, any modification concerning the technical specifications shall be subject to a prior study on the contract scope, cost and time limits. (7) Variations in the quantity of services performed shall be taken into account under the conditions set forth in the general administrative clauses.