FAR and DFARS › FAR Part 35: Research and Development Contracting

FAR 35.005 Work statement.

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

FAR 35.005 requires a clear and complete work statement for research and development contracts, tailored to allow contractor innovation and creativity. It distinguishes between basic research (focus on objectives and knowledge) and development/applied research (focus on end objectives), and warns against mixing level-of-effort and task-completion language. Contracting officers must ensure the work statement matches the contract type and includes specific elements in the solicitation.

Applies to: Contracting officers and technical personnel preparing work statements for R&D contracts

What it requires

  • Tailor work statements individually to allow contractor creativity and meet R&D objectives
  • Ensure work statement language is consistent with the type and form of contract
  • Consider and, as appropriate, include specified elements in the solicitation (e.g., statement of area/tasks/objectives, background, constraints, reporting, contract type, other considerations)

Key terms: work statement · basic research · development and applied research · level-of-effort approach · task-completion approach

Written by AI from this section's text. A guide, not legal advice: the text below rules.

The text

(a) A clear and complete work statement concerning the area of exploration (for basic research) or the end objectives (for development and applied research) is essential. The work statement should allow contractors freedom to exercise innovation and creativity. Work statements must be individually tailored by technical and contracting personnel to attain the desired degree of flexibility for contractor creativity and the objectives of the R&D.

(b) In basic research the emphasis is on achieving specified objectives and knowledge rather than on achieving predetermined end results prescribed in a statement of specific performance characteristics. This emphasis applies particularly during the early or conceptual phases of the R&D effort.

(c) In reviewing work statements, contracting officers should ensure that language suitable for a level-of-effort approach, which requires the furnishing of technical effort and a report on the results, is not intermingled with language suitable for a task-completion approach, which often requires the development of a tangible end item designed to achieve specific performance characteristics. The wording of the work statement should also be consistent with the type and form of contract to be negotiated (see 16.207 and 16.306(d)). For example, the work statement for a cost-reimbursement contract promising the contractor's best efforts for a fixed term would be phrased differently than a work statement for a cost-reimbursement completion contract promising the contractor's best efforts for a defined task. Differences between work statements for fixed-price contracts and cost-reimbursement contracts should be even clearer.

(d) In preparing work statements, technical and contracting personnel shall consider and, as appropriate, provide in the solicitation—

(1) A statement of the area of exploration, tasks to be performed, and objectives of the research or development effort;

(2) Background information helpful to a clear understanding of the objective or requirement (e.g., any known phenomena, techniques, methodology, or results of related work);

(3) Information on factors such as personnel, environment, and interfaces that may constrain the results of the effort;

(4) Reporting requirements and information on any additional items that the contractor is required to furnish (at specified intervals) as the work progresses;

(5) The type and form of contract contemplated by the Government and, for level-of-effort work statements, an estimate of applicable professional and technical effort involved; and

(6) Any other considerations peculiar to the work to be performed; for example, any design-to-cost requirements.

Sections it refers to

  • 16.207 Firm-fixed-price, level-of-effort term contracts.
  • 16.306 Cost-plus-fixed-fee contracts.

← 35.004 Publicizing requirements and expanding research and development sources. · 35.006 Contracting methods and contract type. →

Rule changes for FAR Part 35

Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Plain words for the terms: glossary.

FAR 35.005 Work statement · SpendQuery