NAVY 5252.243-9505 ENGINEERING CHANGES (NAVAIR) Basic (Oct 2005)

This clause has not been authorized for official release. We recommend deferring to the text of the clause in your RFP or contract.


    (a) After contract award, the Contracting Officer may solicit, and the contractor is encouraged to propose independently, engineering changes to the equipment, software specifications or other requirements of this contract.  These changes may be proposed for reasons of economy, improved performance, or to resolve increased data processing requirements. If the proposed changes are acceptable to both parties, the contractor shall submit a price change proposal to the Government for evaluation.  Those proposed engineering changes that are acceptable to the Government will be processed as modifications to the contract.

    (b) This applies only to those proposed changes identified by the contractor, as a proposal submitted pursuant to the provisions of this clause. As a minimum, the following information shall be submitted by the contractor with each proposal:

        (1) A description of the difference between the existing contract requirement and the proposed change, and the comparative advantages and disadvantages of each.

        (2) Itemized requirements of the contract that must be changed if the proposal is adopted, and the proposed revision to the contract for each such change.

        (3) An estimate of the changes in performance costs, if any, that will result from adoption of the proposal.

        (4) An evaluation of the effects the proposed change would have on collateral costs to the Government such as Government-furnished property costs, costs of related items, and costs of maintenance and operation.

        (5)  A statement of the time by which the change order adopting the proposal must be issued so as to obtain the maximum benefits of the changes during the remainder of this contract. Also, any effect on the contract completion time or delivery schedule shall be identified.

    (c) Engineering change proposals submitted to the Contracting Officer shall be processed expeditiously.  The Government shall not be liable for proposal preparation costs or any delay in acting upon any proposal submitted pursuant to this clause.  The contractor has the right to withdraw, in whole or in part, any engineering change proposal not accepted by the Government within the period specified in the engineering change proposal.  The decision of the Contracting Officer as to the acceptance of any such proposal under this contract shall be final and shall not be subject to the "Disputes" clause of the contract.

    (d) The Contracting Officer may accept any engineering change proposal submitted pursuant to this clause by giving the contractor written notice thereof. This written notice may be given by issuance of a modification to this contract. Unless and until a modification is executed to incorporate an engineering change proposal under this contract, the contractor shall remain obligated to perform in accordance with the terms of the existing contract.

    (e) If an engineering change proposal pursuant to this clause is accepted and applied to this contract, an equitable adjustment in the contract price and in any other affected provisions of this contract shall be made in accordance with the "Changes" clause.

    (f) The contractor is requested to identify specifically any information contained in its engineering change proposal which it considers confidential and/or proprietary and which it prefers not to be disclosed to the public. The identification of information as confidential and/or proprietary is for information purposes only and shall not be binding on the Government to prevent disclosure of such information. Offerors are advised that such information may be subject to release upon request pursuant to the Freedom of Information Act (5 U.S.C. 552).


Prime’s Interest;

52.215-21 Requirements for Certified Cost or Pricing Data and Data Other Than Certified Cost or Pricing Data—Modifications.

52.216-16 Incentive Price Revision—Firm Target.

52.216-2 Economic Price Adjustment—Standard Supplies.

52.216-3 Economic Price Adjustment—Semistandard Supplies.

52.216-4 Economic Price Adjustment—Labor and Material.

52.216-5 Price Redetermination—Prospective.

52.216-6 Price Redetermination—Retroactive.

52.222-30 Construction Wage Rate Requirements—Price Adjustment (None or Separately Specified Method).

52.222-31 Construction Wage Rate Requirements—Price Adjustment (Percentage Method).

52.222-32 Construction Wage Rate Requirements—Price Adjustment (Actual Method).

52.222-43 Fair Labor Standards Act and Service Contract Labor Standards—Price Adjustment (Multiple Year and Option Contracts).

52.222-44 Fair Labor Standards Act and Service Contract Labor Standards—Price Adjustment.

52.222-55 Minimum Wages Under Executive Order 13658.

52.229-4 Federal, State, and Local Taxes (State and Local Adjustments).

52.229-6 Taxes—Foreign Fixed-Price Contracts.

52.232-29 Terms for Financing of Purchases of Commercial Items.

52.232-31 Invitation to Propose Financing Terms.

52.233-3 Protest after Award.

52.236-2 Differing Site Conditions.

52.242-14 Suspension of Work.

52.242-15 Stop-Work Order.

52.243-1 Changes—Fixed-Price.

52.243-2 Changes—Cost-Reimbursement.

52.243-3 Changes—Time-and-Materials or Labor-Hours.

52.243-4 Changes.

52.243-5 Changes and Changed Conditions.

52.243-7 Notification of Changes.

52.250-5 SAFETY Act—Equitable Adjustment.

252.216-7000 Economic Price Adjustment—Basic Steel, Aluminum, Brass, Bronze, or Copper Mill Products.

252.216-7001 Economic Price Adjustment–Nonstandard Steel Items.

252.216-7003 Economic Price Adjustment—Wage Rates or Material Prices Controlled by a Foreign Government.

252.216-7007 Economic Price Adjustment—Basic Steel, Aluminum, Brass, Bronze, or Copper Mill Products—Representation.

252.216-7008 Economic Price Adjustment—Wage Rates or Material Prices Controlled by a Foreign Government—Representation.

252.217-7003 Changes.

252.217-7027 Contract Definitization.

252.227-7002 Readjustment of Payments.

252.232-7000 Advance Payment Pool.

252.232-7012 Performance-Based Payments–Whole-Contract Basis.

252.232-7013 Performance-Based Payments—Deliverable-Item Basis.

252.236-7003 Payment for Mobilization and Preparatory Work.

252.236-7004 Payment for Mobilization and Demobilization.

252.237-7023 Continuation of Essential Contractor Services .

252.239-7004 Orders for Facilities and Services.

252.241-7000 Superseding Contract.

252.243-7001 Pricing of Contract Modifications.

252.243-7002 Requests for Equitable Adjustment.

252.247-7000 Hardship Conditions.

252.247-7002 Revision of Prices.

252.249-7000 Special Termination Costs.

252.215-7015 Program Should-Cost Review.

252.232-7015 Performance-Based Payments—Representation.

252.232-7016 Notice of Progress Payments or Performance-Based Payments.

1852.215-79 Price Adjustment for "Make-or-Buy" Changes.

1852.242-72 Denied Access to NASA Facilities

1852.243-72 Equitable Adjustments.



5252.216-9200 Payment of Fixed Fee (Completion Type)

5252.216-9201 Payment of Fixed Fee Based on Staff-hours (Term Type)

5252.216-9205 Fee Determination and Payment (Indefinite Delivery Type Contracts)

5252.217-9201 Contract Maximum Amount


3052.216-70 Evaluation of offers subject to an economic price adjustment clause.

3052.216-71 Determination of award fee.

3052.231-70 Precontract costs.

5152.211-9001 Variations in Estimated Quantities—Subline Items.

5152.237-9000 Adjustments to Contractor’s Coefficient for Option Years (Job Order Contracts).

552.236-11 Use and Possession Prior to Completion.

552.215-72 Price Adjustment—Failure to Provide Accurate Information.

552.216-70 Economic Price Adjustment—FSS Multiple Award Schedule Contracts.

552.216-71 Economic Price Adjustment—Special Order Program Contracts.

552.238-81 Price Reductions.

552.243-71 Equitable Adjustments.

552.246-70 Source Inspection by Quality Approved Manufacturer.

552.246-77 Additional Contract Warranty Provisions for Supplies of a Noncomplex Nature.

552.238-82 Modifications (Federal Supply Schedules).

652.216-71 Price Adjustment.

652.237-70 Compensatory Time Off.

652.237-72 Observance of Legal Holidays and Administrative Leave.

952.204-76 Conditional payment of fee or profit—safeguarding restricted data and other classified information.

952.208-70 Printing.

952.216-7 Allowable cost and payment.

952.216-15 Predetermined indirect cost rates.

952.223-76 Conditional payment of fee or profit—safeguarding restricted data and other classified information and protection of worker safety and health.

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