An engineering change shall be classified as Class I or Class II by the preparing contractor in accordance with this standard. Class I ECPs shall be referred to the Government for approval or disapproval. Classification disagreements shall be referred to the Government for final decision. A proposed engineering change to a CI, or to any combination or discrete portion thereof, shall be determined to be Class I by examining the factors below, as contractually applicable, to determine if they would be impacted as a result of implementing the change. The change shall be Class I if:
a. The FCD or ACD, once established, is affected to the extent that any of the following requirements would be outside specified limits or specified tolerances:
(2) Reliability, maintainability or survivability.
(3) Weight, balance, moment of inertia.
(4) Interface characteristics.
(5) Electromagnetic characteristics.
(6) Other technical requirements in the specifications.
NOTE: Minor clarifications and corrections to FCD or ACD shall be made only as an incidental part of the next Class I ECP and accompanying SCN or NOR, unless otherwise directed by the Government.
b. A change to the PCD, once established, will affect the FCD or ACD as described in 22.214.171.124.la or will impact one or more of the following:
(3) Compatibility or specified interoperability with interfacing CIs, support equipment or support software, spares, trainers or training devices/equipment/software.
(4) Configuration to the extent that retrofit action is required.
(5) Delivered operation and maintenance manuals for which adequate change/revision funding is not provided in existing contracts.
(6) Preset adjustments or schedules affecting operating limits or performance to such extent as to require assignment of a new identification number.
(7) Interchangeability, substitutability, or replaceability as applied to CIs, and to all subassemblies and parts except the pieces and parts of non-reparable subassemblies.
(8) Sources of CIs or repairable items at any level defined by source-control drawings.
(9) Skills, manning, training, biomedical factors human-engineering design.
c. Any of the following contractual factors are affected:
(1) Cost to the Government including incentives and fees.
(2) Contract guarantees or warranties.
(3) Contractual deliveries.
(4) Scheduled contract milestones.
126.96.36.199.2 Classifying engineering changes to a privately developed item. An engineering change to a PDI shall be classified Class I when it affects the contractually specified form, fit, function, or logistics support of an item or factors in 188.8.131.52.1c. When a greater degree of control is negotiated between the Government and the contractor, effects on other factors may be added to the effects on form, fit or function factors which classify an engineering change as Class I.
184.108.40.206.3 Content of Engineering Change Proposals
(ECPs). The DD Forms 1692 - 1692/6, Engineering Change Proposal Pages 1-7,
shall be prepared in accordance with Appendix D for Class I engineering
changes. When Government approval is required by the contract for Class II
engineering changes, DD Form 1692 (Page 1) shall be used. If Government
approval of Class II engineering changes is not required by the contract,
local forms may be used by the contractor for Class II changes. (See 6.3
220.127.116.11.3.1 Unrelated engineering changes. A separate ECP shall be required for each engineering change which has its own distinct objective.
18.104.22.168.3.2 Revisions of ECPs. An ECP shall be revised when alterations or changes to the initial ECP are necessary. The first revision to an ECP shall be identified by the entry of "R1" in the revision block of the ECP form. Further revisions of the same ECP shall be identified by the entry of "R2", "R3", etc. The date of the ECP shall be the submission date of the revision.
a. Major revisions to an ECP shall be made as a complete revised package of DD Form 1692-1692/6 and attachments.
b. Minor revisions to an ECP (such as those which correct errors, add or delete information, update pricing, or provide clarifications) may be made by attaching new or revised pages to a reaccomplished Page 1 of the ECP form.
c. In either case, the information which differs from the original ECP shall be clearly identified in a manner similar to the marking of change pages for specifications. Block 19 of the ECP form should include information as to whether the revision is a resubmittal, replacing the existing ECP in its entirety, or provides change pages to the existing ECP.
22.214.171.124.3.3 Supporting data. Formal ECPs shall be supported by drawings and other data (e.g., LSA data, detailed cost proposal data, test data and analyses) as specified in the contract to justify and describe the change and to determine its total impact including assessments of changes to system operational employment characteristics. A summary of any testing done by the contractor to validate concepts or new technology to be employed in the proposed engineering change shall be presented in the supporting data, and details of such test data shall be provided if it is vital to the decision regarding acceptance of the change.
126.96.36.199.3.4 Classified data. When practicable, the ECP should be unclassified. Classified data essential to the evaluation and disposition of an ECP shall be submitted separately in accordance with the approved security procedures and referenced in the unclassified portion of the ECP. The contractual DD Form 254 or DoD Contract Security Classification Specification applies.