The Acquisition Dictionary

The Part 19 model deviation reorganizes small business coverage into lifecycle subparts and lets an incumbent 8(a) requirement release automatically when the follow-on is set aside for another socioeconomic program; Part 19 is not in the June 2026 first-batch proposed rules, so published subpart 19.8 still controls absent an agency deviation.

The AAF is DoD policy issued under title 10 authorities rather than FAR text, so the FAR Overhaul's model deviations leave it intact; DoD's companion DFARS class deviations, issued December 2025 through March 2026, rewrite contracting regulation, not pathway policy.

The Part 42 model deviation keeps the 42.202 delegation mechanics and the full 42.302 function lists, adding text that the contracting officer may retain any paragraph (a) function except the four reserved to the cognizant Federal agency (forward pricing rate agreements, final indirect cost rates, Cost Accounting Standards administration, and accounting system adequacy); DoD adopted the model text with DFARS 242 through class deviation 2026-O0050 effective March 6, 2026, and Part 42 was not among the parts in the four proposed rules published June 23, 2026.

System authorization lives in FISMA, OMB policy, and NIST and DoD issuances rather than the FAR, so the overhaul does not reach it; the June 2026 proposed rule (FAR Case 2026-001) consolidates the FAR's information-security clauses into Part 40 without touching the ATO process.

The Part 15 model deviation (RFO-2025-15, issued September 30, 2025, adopted by agencies beginning November 3, 2025) collapses Part 15 into five subparts and adds a highest-technically-rated-with-a-fair-and-reasonable-price evaluation approach alongside tradeoff; the tradeoff authority itself is statutory. Part 15 is not in the June 2026 first-batch proposed rules, so published 15.101-1 remains the baseline absent an agency deviation. (verified September 12, 2026)

The Part 33 model deviation rebuilds agency protests at 33.104-4 with a 35-day best-effort resolution target and restates the stay at 33.105-3, and Part 33 is in the June 23, 2026 first-batch proposed rules, which drop the FAR's restatement of GAO procedure in favor of a pointer to 4 CFR part 21.

The Part 35 model deviation (RFO-2025-35, issued July 2025) keeps BAA procedures substantively intact, relocating them from 35.016 to 35.102 with plain-language edits.

The RFO Part 25 model deviation keeps Buy American supplies policy in subpart 25.1 with the graduated content thresholds intact and adds a MadeinAmerica.gov waiver-portal step for nonavailability determinations, so confirm section numbers against your agency's class deviation.

The Part 15 model deviation restructures subpart 15.4 but keeps the certified cost or pricing data clauses substantively intact; the bigger change is statutory — Pub. L. 119-60 moved the DoD threshold to $10 million effective June 30, 2026, ahead of conforming FAR text, so check current agency guidance before citing a number.

Class deviations ARE the current RFO implementation vehicle; DoD maintains parallel DFARS class deviations. This entry's subject is the mechanism itself.

No impact: appropriations law sits in title 31 and the annual appropriations acts, outside the FAR, so neither the model deviations nor the 2026 proposed rules change how funds are colored, timed, or limited.

The Part 4 model deviation moves CAGE policy under contractor identification at 4.305, keeping the life-of-contract maintenance duty and the 30-day change report, and Part 4 is in the June 23, 2026 proposed rule, which folds CAGE collection into a consolidated offeror-identification provision.

The Part 12 model deviation (adopted by agencies through class deviations in fall 2025) rebuilds the part around presolicitation, solicitation and award, postaward, and micro-purchase subparts and strips dozens of clause requirements; Part 12 is not in the June 2026 first-batch proposed rules, so the published text remains the baseline absent an agency deviation.

CSO authority is statutory and implemented in DFARS subpart 212.70, which the FAR Overhaul model deviations do not rewrite; DoD's Part 12 deviation carries forward the commercial framework a CSO award rides on.

The Part 32 model deviation keeps the funds-availability rules at FAR 32.703-2 and 32.703-3 in regulation, so CR-driven contracting mechanics carry through the overhaul unchanged.

The Revolutionary FAR Overhaul model deviations rewrite the FAR itself, so the DD Form 1423 process is not directly changed; agencies are expected to streamline their own supplements, making DoD class deviations and DFARS revisions the channel to watch.

The FAR Overhaul model deviation moves line-item policy from subpart 4.10 to section 4.202, and Part 4 is in the June 2026 proposed rule covering Parts 1, 2, 4, 33, 39, 40, and 53; DoD's DFARS numbering scheme is unchanged.

The Part 43 model deviation, adopted by agencies through class deviations since June 2025, trims non-statutory text but keeps the structure — the unilateral/bilateral split, SF 30, and change-order definitization survive — and Part 43 is not in the June 2026 first-batch proposed rules.

The Part 17 model deviation renumbers options coverage (exercise requirements move to 17.204-1, with skip-evaluation approvals one level above the contracting officer), so check the adopted deviation text before citing legacy 17.2 section numbers.

The Part 1 model deviation moves contracting officer authority and appointment to 1.402 and 1.403 while keeping the SF 1402, and Part 1 is in FAR Case 2026-001, proposed June 23, 2026, so that restructure is now in formal rulemaking; until a final rule, 1.602 and 1.603 control except under an agency deviation.

The June 23, 2026 proposed rule covering Parts 1, 2, 4, 33, 39, 40, and 53 consolidates COR policy into a proposed FAR 1.404; until it finalizes, 1.602-2(d) and 1.604 control except at agencies operating under the Part 1 model deviation.

The June 2026 overhaul proposed rule (FAR Case 2026-001) folds the January 2025 CUI proposed rule into proposed FAR Part 40, standardizes CUI identification on a new form, and relaxes the incident-reporting window from 8 hours to 72; comments closed July 23, 2026.

The Part 30 model deviation keeps the subpart structure while pulling cost-impact detail out for separate CAS Board rulemaking, and the changes that bite are outside the FAR: section 1806 of the FY2026 NDAA and the Board's September 1, 2026 final rule move the thresholds to $35 million and $100 million effective October 1, 2026.

The current Part 16 model deviation carries CPFF at section 16.304 in a condensed subpart 16.3, and new section 16.104 (Executive Order 14402) requires written justification — with agency-head approval above set thresholds — before any new cost-reimbursement award.

CMMC lives in 32 CFR Part 170 and the DFARS rather than the FAR, so the overhaul does not rewrite it; the July 2026 Phase 2 suspension is a separate DoD program review, and the proposed FAR Part 40 CUI framework would sit alongside CMMC, not replace it.

The RFO model deviations reserve FAR subpart 4.4 and move its DD Form 254 machinery to new section 40.302, with clause 52.240-92 replacing 52.204-2; the June 2026 proposed rule (FAR Case 2026-001) would make the relocation permanent.

The Part 42 model deviation keeps subpart 42.1 and the 42.101 designation of DCAA as the normal responsible audit agency, edited into plain language; DoD adopted the model text with DFARS 242 through class deviation 2026-O0050 effective March 6, 2026, and Part 42 was not among the parts in the June 23, 2026 proposed rules.

The Part 42 model deviation retains the 42.302 function lists DCMA works from (71 delegable functions in paragraph (a), 11 requiring specific authorization in (b)); DoD adopted the model text with a rewritten DFARS 242 through class deviation 2026-O0050 effective March 6, 2026, and Part 42 was not among the parts in the four proposed rules published June 23, 2026.

DoD ran the overhaul on its own book in parallel, issuing class deviations 2026-O0002 through 2026-O0050 from December 18, 2025 through March 2026 to adopt RFO text and revise DFARS parts, so check the deviation before citing codified Chapter 2 text.

Part 1 is in the June 2026 first-batch proposed rules (91 FR 37550), which keep D&F policy intact but relocate it from subpart 1.7 to proposed subpart 1.5; confirm numbering once the rule is finalized.

Impact levels live in DoD policy and the DFARS, which the FAR Overhaul does not reach; the nearest touchpoint is proposed FAR Part 40's governmentwide FedRAMP Moderate-equivalence requirement for CUI in the cloud, which parallels the IL framework without displacing it.

The Part 34 model deviation, released in the first wave in May 2025, keeps subpart 34.2 with its OMB Circular A-11 and EIA-748 anchors while reserving the separate integrated baseline review notice provisions at 52.234-2 and 52.234-3; Part 34 is not in the June 2026 first-batch proposed rules.

The Part 17 model deviation retains subpart 17.5 with plain-language revisions, and the D&F requirement is rooted in the statute, so Economy Act mechanics carry through the overhaul intact.

The FAR Overhaul's Part 43 model deviation (RFO-2025-43) keeps the bilateral and unilateral modification framework an ECP rides on, and DoD's class deviation 2026-O0034 (effective January 12, 2026) carries DFARS Part 243 into the overhaul; ECP mechanics themselves live in MIL-HDBK-61B and DD Form 1692, which the overhaul does not touch.

The NISPOM sits in title 32, not the FAR, so the overhaul leaves FCL requirements untouched; the FAR-side hook moves from subpart 4.4 to section 40.302 under the Part 40 model deviation and the June 2026 proposed rule (FAR Case 2026-001).

The Part 16 model deviation relocates fair opportunity from 16.505(b) to a tiered 16.507, with separate procedures at the micro-purchase, simplified acquisition, and $7.5 million breakpoints and exceptions at 16.507-6, so confirm section numbers against your agency's adopted deviation.

The FAR is the object of the overhaul itself: E.O. 14275 (April 2025) ordered the rewrite, agencies adopted model deviation text part by part through 2025, and formal proposed rules began publishing June 23, 2026.

FedRAMP is statutory and sits outside the FAR, but FAR Case 2026-001 (proposed June 23, 2026) writes it into proposed Part 40, requiring cloud services that hold CUI to meet security equivalent to the FedRAMP Moderate baseline and excusing FedRAMP-authorized providers with incident-reporting procedures from duplicate CUI incident reporting.

The Part 16 model deviation keeps FFP at 16.202 and adds section 16.104, implementing Executive Order 14402's fixed-price default: other-than-fixed-price contracts now need written justification, with agency-head approval at $100 million for DoD, $35 million for NASA, $25 million for DHS, and $10 million for other agencies.

The Part 45 model deviation, released September 11, 2025, keeps the subpart structure and the 52.245-1 clause family while directing agencies to accept contractors' existing property systems and voluntary consensus standards rather than imposing separate ones; Part 45 was not in the June 2026 first-wave proposed rules.

The Part 8 model deviation (August 14, 2025) pulls the prescriptive ordering procedures out of subpart 8.4 and points ordering activities to FSS procedures established by GSA, codified at GSAR subpart 538.71 effective November 3, 2025; Part 8 is not in the June 2026 first-batch proposed rules.

The Part 19 model deviation folds HUBZone presolicitation rules into its lifecycle structure while keeping the set-aside, sole-source, and price-preference mechanics intact; Part 19 is not in the June 2026 first-batch proposed rules, so published subpart 19.13 remains the operative citation absent an agency deviation.

The Part 16 model deviation keeps IDIQ coverage in subpart 16.5, retains the multiple-award preference and the $150 million single-award determination, and adds express on-ramp and off-ramp authority for multiple-award vehicles.

The Part 15 model deviation (September 30, 2025) restructures subpart 15.4's cost and price analysis coverage while keeping the IGCE's role in validating price reasonableness; Part 15 is not in the June 2026 first-batch proposed rules, so published 15.404-1 remains the citation absent an agency deviation. (verified September 12, 2026)

The Part 6 model deviation was among the first issued (spring 2025) and streamlines competition coverage without generally substantive change; agencies adopted it through class deviations — GSA's RFO-2025-06 in July 2025, DoD via class deviation 2026-O0017, Revision 2 (August 5, 2026), covering DFARS 206. Part 6 is not in the June 2026 first-batch proposed rules, so published FAR 6.303 remains the citation absent an agency deviation. (verified September 12, 2026)

The RFO Part 19 model deviation rebuilds the part around three subparts and moves the clause prescription to 19.104-3(c); the percentages are statutory and carry over unchanged.

The Part 15 model deviation (September 30, 2025) carries source selection procedures into its condensed five-subpart structure, and the statutory limits on DoD's use of LPTA, implemented at DFARS 215.101-2, remain in force regardless of FAR restructuring. Part 15 is not in the June 2026 first-batch proposed rules, so published 15.101-2 controls absent an agency deviation. (verified September 12, 2026)

The Part 10 model deviation (May 23, 2025) rewrote market research coverage, and the June 23, 2026 proposed rule at 91 FR 37636 moves it from Part 10 into subpart 7.2 under acquisition planning; DoD's Part 7 class deviation 2026-O0020, Revision 1 (September 2, 2026) carries the DFARS acquisition-planning side. The documentation requirement survives with new section numbers pending final rulemaking. (verified September 12, 2026)

MTA sits in Title 10 and DoD policy rather than the FAR, so the FAR Overhaul's model deviations do not touch it; the FY 2025 NDAA separately codified the authority at 10 U.S.C. 3602.

No direct impact: MIPR procedures live in the DFARS, its PGI, and the DoD FMR rather than FAR text, so the Revolutionary FAR Overhaul model deviations leave them untouched.

MOSA sits in title 10 and DoD engineering policy, which the FAR Overhaul's model deviations do not rewrite; the recent statutory movement came from the FY 2025 NDAA, which added interface-standard disclosure requirements to 10 U.S.C. 4401.

The June 2026 proposed FAR CUI framework (FAR Case 2026-001) would carry 800-171 governmentwide, its standard form specifying organization-defined parameters for Revision 3, while DoD's class deviation keeps DFARS work on Revision 2.

The Part 19 model deviation carries NAICS designation at 19.103(b) and appeals at 19.103(d), keeping the one-code rule and the October 1, 2028 multiple-award change; Part 19 is not in the June 2026 proposed rules, so published 19.102 and 19.103 control absent an agency deviation.

The Part 9 model deviation retains subpart 9.5 with plain-language edits, while a separate proposed rule under FAR case 2023-006, implementing Pub. L. 117-324, would move OCI coverage to a new subpart 3.12 with standard provisions and clauses; that rule remained unfinalized as of this entry's verification, so watch both tracks.

OTs sit outside the FAR and are unaffected by the overhaul's text changes, though the reform climate has increased interest in both.

The Part 42 model deviation moves contractor performance information from subpart 42.15 to subpart 42.11 and drops the source-selection-only framing in favor of use for future purposes; Part 42 is not in the June 2026 first-batch proposed rules, so FAR 42.1503 remains the published baseline absent an agency deviation.

The Part 37 model deviation moves performance-based acquisition policy into subpart 37.1 — the PWS requirement sits at 37.102-1 — while renumbered subpart 37.6 covers nonpersonal health care services; the published FAR still carries 37.602.

The one-year severable-services authority is statutory and carries through the overhaul; the Part 37 model deviation restates it, but section numbers shift in the rewritten parts, so verify cites against your agency's adopted deviation text.

No direct impact: PPBE is internal DoD resource allocation outside the FAR, so the model deviations and 2026 proposed rules rewrite acquisition regulation around it, not the process itself.

The Part 15 model deviation moves debriefings into the postaward subpart as 15.301-1 and adds a follow-up-questions section at 15.301-2; Part 15 is not in the June 2026 first-batch proposed rules, so FAR 15.506 remains the published baseline absent an agency deviation.

PALT reduction is an explicit goal of the Revolutionary FAR Overhaul; expect measurement and reporting emphasis to continue.

The PSC taxonomy lives in GSA's manual and FPDS rather than FAR text, so overhaul deviations leave the codes untouched; the synopsis requirement that carries the PSC sits in Part 5, which is in the June 23, 2026 proposed rule covering Parts 5, 24, and 29.

The overhaul consolidates QASP policy in Part 46: the Part 37 model deviation removes former 37.604 as redundant while the Part 46 model text keeps the 46.401 language unchanged; DoD adopted both through class deviations 2026-O0023 (December 18, 2025) and 2026-O0035 (January 20, 2026), and Part 37, but not Part 46, is in a June 23, 2026 proposed rule.

No impact: appropriation classification lives in the DoD FMR and title 31, outside the FAR, so neither the model deviations nor the June 2026 proposed rules reach it.

The Part 43 model deviation (RFO-2025-43) retains change order and equitable adjustment procedures in plain-language form, DoD's class deviation 2026-O0034 (effective January 12, 2026) carries DFARS Part 243 into the overhaul, and the REA certification itself is statutory under 10 U.S.C. 3862, so it survives whatever section numbering the final rule lands on.

The Part 15 model deviation (September 30, 2025) moves solicitation and exchanges-with-industry coverage into subpart 15.1, and the June 23, 2026 proposed rule at 91 FR 37636 relocates market research — the context most RFIs serve — from Part 10 into subpart 7.2. Part 15 is not in the first-batch proposed rules, so published 15.201 controls absent an agency deviation. (verified September 12, 2026)

The Part 15 model deviation (RFO-2025-15, adopted by agencies beginning November 3, 2025) collapses Part 15 into five subparts and moves solicitation guidance into subpart 15.1, adding a highest-technically-rated-with-a-fair-and-reasonable-price evaluation approach, so confirm section numbers against your agency's adopted deviation.

The Part 13 model deviation (September 18, 2025) rebuilds simplified procedures around presolicitation, solicitation, postaward, and micro-purchase subparts and points RFQ issuance at the deviated Part 12 commercial procedures; Part 13 is not in the June 2026 first-batch proposed rules, so FAR 13.004 controls absent an agency deviation.

The Part 19 model deviation rewrites the rule at 19.104-1 with a single test above the micro-purchase threshold, adding quality and delivery to the price factors, and moves order-level set-asides to 19.111-2; Part 19 is not in the June 2026 first-batch proposed rules, so FAR 19.502-2 still controls absent an agency deviation.

Program authority is statutory and outside FAR overhaul scope; implementing contract mechanics still ride on FAR/DFARS text being revised.

The June 23, 2026 proposed rule folds subpart 4.21 into the consolidated supply-chain Part 40, regrouping the provisions and clauses under proposed 52.240-2 and 52.240-3, so the prohibition keeps its Part A and Part B shape but will change clause numbers when the rule finalizes.

The RFO Part 22 model deviation (first posted October 9, 2025) keeps subpart 22.10 — the requirements are statutory — while cutting non-statutory material elsewhere in the part.

The Part 19 model deviation folds subpart 19.14's set-aside and sole-source mechanics into its lifecycle structure; Part 19 is not in the June 2026 first-batch proposed rules, so published subpart 19.14 remains the operative citation absent an agency deviation.

The Part 19 model deviation consolidates set-asides at 19.104 — one total set-aside test at 19.104-1 that adds quality and delivery to the price factors, partial set-asides at 19.104-2, order-level set-asides at 19.111-2; Part 19 is not in the June 2026 first-batch proposed rules, so FAR Subpart 19.5 controls absent an agency deviation.

SWP lives in Title 10 and DoD policy, which the FAR Overhaul's deviations do not rewrite; current change comes instead from the FY 2025 NDAA codification at 10 U.S.C. 3603 and the March 2025 software acquisition memo.

The Part 15 model deviation (September 30, 2025, adopted by agencies beginning November 3, 2025) collapses Part 15 into five subparts and carries source selection planning with it, and DoD Source Selection Procedures continue to apply on top of whichever text an agency has adopted; Part 15 is not in the June 2026 first-batch proposed rules, so verify section numbers against your agency's adopted deviation. (verified September 12, 2026)

Parts 5 and 10 both carry FAR Overhaul model deviations, and the June 2026 proposed rule (91 FR 37636) moves market research from Part 10 into subpart 7.2 as part of acquisition planning; verify section numbers before citing.

The Part 37 model deviation relocates SOO coverage to 37.102-1(a)(1), keeping the rule that the SOO does not become part of the contract; 37.602(c) remains the citation in the published FAR.

Under the Part 37 model deviation, service work-description policy moves to subpart 37.1 (37.101-1 and 37.102-1); the published FAR still carries Part 11 and 37.602, so both citations remain valid until rulemaking lands.

The Part 4 model deviation rebuilds registration policy at 4.203 and SAM maintenance at 4.304, and Part 4 is in the June 23, 2026 first-batch proposed rules covering Parts 1, 2, 4, 33, 39, 40, and 53.

DoD's RFO class deviation 2026-O0036 restructured DFARS Part 227 and consolidated 252.227-7013 and -7014 into a single noncommercial clause, 252.227-7989, while the funding-based rights framework stays anchored in 10 U.S.C. 3771, so check which clause set a given solicitation carries.

The Part 49 model deviation keeps the one-year settlement proposal window, but the proposed rule for Parts 3 and 49 (FAR Case 2026-007, published June 23, 2026) would cut it to 90 days, shorten inventory schedules to 60 days, and make settlement audits discretionary for the TCO; DoD adopted the model text through class deviation 2026-O0010 effective February 1, 2026.

The Part 49 model deviation carries the default framework over intact, with the 10-day cure notice, show cause notice, excess reprocurement cost recovery, and convenience conversion for excusable failures all retained; the proposed rule for Parts 3 and 49 (FAR Case 2026-007, published June 23, 2026) describes its subpart 49.4 edits as clarifying when a cure notice applies and when a show cause notice is practicable, and DoD adopted the model text through class deviation 2026-O0010 effective February 1, 2026.

The Part 16 model deviation retains T&M coverage in subpart 16.6, and section 16.104 (Executive Order 14402) pulls T&M and labor-hour awards into the written-justification and approval regime for other-than-fixed-price contracts.

The Part 1 model deviation moves ratification from 1.602-3 to 1.405 in a rewritten Subpart 1.4, keeps the definitions, the head of the contracting activity as ratifying official, the chief of the contracting office delegation floor, and the acceptance, authority, propriety, price, legal concurrence, and funds tests, drops the catch-all condition on other agency-procedure limitations, and routes nonratifiable cases to 31 U.S.C. 3702 or Subpart 50.1; the proposed rule for Parts 1, 2, 4, 33, 39, 40, and 53 (FAR Case 2026-001, published June 23, 2026) keeps the 1.405 placement, and DoD adopted the model text through class deviation 2026-O0002 effective February 1, 2026.

UCA policy lives in the DFARS and title 10 rather than the FAR, so the overhaul does not rewrite it directly; the RFO Part 16 model deviation retains letter contract coverage at 16.603, so the companion citation carries over.

The Part 4 model deviation keeps the identifier under contractor identification at 4.305 — UEI and CAGE code maintained for the life of the contract, changes reported within 30 days — and Part 4 is in the June 23, 2026 first-batch proposed rules.

The Part 19 model deviation reorganizes small business coverage into presolicitation, evaluation-and-award, and postaward subparts; Part 19 is not in the June 2026 first-batch proposed rules, so published subpart 19.15 still controls absent an agency deviation.