FAR and DFARS › FAR Part 15: Contracting by Negotiation › Subpart 15.1
FAR 15.101-2 Lowest price technically acceptable source selection process.
The codified text (eCFR, as of 2026-10-02). Under the Revolutionary FAR Overhaul ↗, agencies follow class deviations with new text for many parts while the formal rules go through the Federal Register: check the solicitation and your contract's clauses, which rule.
In plain English
This section describes the lowest price technically acceptable (LPTA) source selection process, where award goes to the technically acceptable proposal with the lowest evaluated price. It sets conditions for when this process is appropriate and, for agencies other than DoD, restricts its use to situations where requirements are clear and no value is gained from exceeding minimums. It also tells contracting officers to avoid LPTA for certain types of procurements.
Applies to: Contracting officers using the lowest price technically acceptable source selection process
What it requires
- Set forth evaluation factors and significant subfactors that establish acceptability in the solicitation.
- Specify in the solicitation that award will be made on the basis of the lowest evaluated price of proposals meeting or exceeding the acceptability standards for non-cost factors.
- Refer to the Small Business Administration for a Certificate of Competency determination if a small business' past performance is determined not acceptable.
- Document the contract file describing the circumstances that justify using LPTA (for agencies other than DoD).
Key terms: lowest price technically acceptable source selection process · technically acceptable proposal · evaluated price · acceptability standards · Certificate of Competency
Written by AI from this section's text. A guide, not legal advice: the text below rules.
The text
(a) The lowest price technically acceptable source selection process is appropriate when best value is expected to result from selection of the technically acceptable proposal with the lowest evaluated price.
(b) When using the lowest price technically acceptable process, the following apply:
(1) The evaluation factors and significant subfactors that establish the requirements of acceptability shall be set forth in the solicitation. Solicitations shall specify that award will be made on the basis of the lowest evaluated price of proposals meeting or exceeding the acceptability standards for non-cost factors. If the contracting officer documents the file pursuant to 15.304(c)(3)(iii), past performance need not be an evaluation factor in lowest price technically acceptable source selections. If the contracting officer elects to consider past performance as an evaluation factor, it shall be evaluated in accordance with 15.305. However, the comparative assessment in 15.305(a)(2)(i) does not apply. If the contracting officer determines that a small business' past performance is not acceptable, the matter shall be referred to the Small Business Administration for a Certificate of Competency determination, in accordance with the procedures contained in subpart 19.6 and 15 U.S.C. 637(b)(7)).
(2) Tradeoffs are not permitted.
(3) Proposals are evaluated for acceptability but not ranked using the non-cost/price factors.
(4) Exchanges may occur (see 15.306).
(c) Except for DoD, in accordance with section 880 of the John S. McCain National Defense Authorization Act for Fiscal Year 2019 (Pub. L. 115-232, 41 U.S.C. 3701 Note), the lowest price technically acceptable source selection process shall only be used when—
(1) The agency can comprehensively and clearly describe the minimum requirements in terms of performance objectives, measures, and standards that will be used to determine the acceptability of offers;
(2) The agency would realize no, or minimal, value from a proposal that exceeds the minimum technical or performance requirements;
(3) The agency believes the technical proposals will require no, or minimal, subjective judgment by the source selection authority as to the desirability of one offeror's proposal versus a competing proposal;
(4) The agency has a high degree of confidence that reviewing the technical proposals of all offerors would not result in the identification of characteristics that could provide value or benefit to the agency;
(5) The agency determined that the lowest price reflects the total cost, including operation and support, of the product(s) or service(s) being acquired; and
(6) The contracting officer documents the contract file describing the circumstances that justify the use of the lowest price technically acceptable source selection process.
(d) Except for DoD, in accordance with section 880 of the John S. McCain National Defense Authorization Act for Fiscal Year 2019 (Pub. L. 115-232, 41 U.S.C. 3701 Note), contracting officers shall avoid, to the maximum extent practicable, using the lowest price technically acceptable source selection process in the case of a procurement that is predominantly for the acquisition of—
(1) Information technology services, cybersecurity services, systems engineering and technical assistance services, advanced electronic testing, audit or audit readiness services, health care services and records, telecommunications devices and services, or other knowledge-based professional services;
(2) Personal protective equipment; or
(3) Knowledge-based training or logistics services in contingency operations or other operations outside the United States, including in Afghanistan or Iraq.
Sections it refers to
← 15.101-1 Tradeoff process. · 15.101-3 Tiered evaluation of small business offers. →
Rule changes for FAR Part 15
- Federal Acquisition Regulation: Revolutionary FAR Overhaul Parts 8, 12, 13, 15, 38, 44, and 51 ↗ · proposed 2026-09-18 · comments due 2026-10-19
- Federal Acquisition Regulation: Inflation Adjustment of Acquisition-Related Thresholds ↗ · final rule 2025-08-27 · effective 2025-10-01
- Federal Acquisition Regulation: Preventing Organizational Conflicts of Interest in Federal Acquisition ↗ · proposed 2025-01-15 · comments due 2025-03-17
- Federal Acquisition Regulation: Controlled Unclassified Information ↗ · proposed 2025-01-15 · comments due 2025-03-17
- Federal Acquisition Regulation: Inflation Adjustment of Acquisition-Related Thresholds ↗ · proposed 2024-11-29 · comments due 2025-01-28
- Federal Acquisition Regulation: Reverse Auction Guidance ↗ · final rule 2024-07-30 · effective 2024-08-29
- Federal Acquisition Regulation: Sustainable Procurement ↗ · final rule 2024-04-22 · effective 2024-05-22
Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Plain words for the terms: glossary.