Title 41, Public ContractsRelease 119-110

§4105 Advisory and Assistance Services

Title 41 › Subtitle I — Federal Procurement Policy › CHAPTER 41 — TASK AND DELIVERY ORDER CONTRACTS › § 4105

Last updated Sep 22, 2026|Official source

Summary

Agency heads may award task order contracts to buy advisory and assistance services. The term "advisory and assistance services" means what it says in 31 U.S.C. 1105(g). Agencies must follow section 4106 and other laws. Contracts under this authority can only be made here. A contract’s total length, including all extensions and options, cannot go beyond 5 years unless another law specifically allows a longer period. Notices must describe the general scope, size, and length so potential bidders can decide to ask for the full solicitation. Solicitations must include the service information required by section 4103(b), and the contract must include the same information. One solicitation may lead to awards to two or more firms if the solicitation says the agency may do that. If the contract would run more than 3 years and is estimated to be over $10,000,000 (including options), the solicitation must provide for multiple awards, but it may say the agency can give only one award if the agency writes that only one offeror can meet the needed quality. If services are unique or highly specialized, the agency can write that multiple awards are not practical. Changes that increase scope, time, or value must be made by modifying the contract and, unless an exception in section 3304(a) is approved under section 3304(e), must use competitive procedures. Notices about modifications follow section 1708 and 15 U.S.C. 637(e). An agency may extend a contract one time, for up to 6 months on a sole-source basis, if an unforeseeable delay prevents a follow-on award and the extension is needed for continuity. This law does not apply when advisory services are only incidental and not a significant part of a larger property or services contract, if the agency head so determines.

Full Legal Text

Title 41, §4105

Public Contracts, Source: USLM XML via OLRC

(a)Definition.—
In this section, the term “advisory and assistance services” has the same meaning given that term in section 1105(g) of title 31.
(b)Authority To Award.—
(1)In general.—
Subject to the requirements of this section, section 4106 of this title, and other applicable law, the head of an executive agency may enter into a task order contract for procurement of advisory and assistance services.
(2)Only under this section.—
The head of an executive agency may enter into a task order contract for advisory and assistance services only under this section.
(c)Contract Period.—
The period of a task order contract entered into under this section, including all periods of extensions of the contract under options, modifications, or otherwise, may not exceed 5 years unless a longer period is specifically authorized in a law that is applicable to the contract.
(d)Content of Notice.—
The notice required by section 1708 of this title and section 8(e) of the Small Business Act (15 U.S.C. 637(e)) shall reasonably and fairly describe the general scope, magnitude, and duration of the proposed task order contract in a manner that would reasonably enable a potential offeror to decide whether to request the solicitation and consider submitting an offer.
(e)Required Content of Solicitation and Contract.—
(1)Solicitation.—
The solicitation shall include the information (regarding services) described in section 4103(b) of this title.
(2)Contract.—
A task order contract entered into under this section shall contain the same information that is required by paragraph (1) to be included in the solicitation of offers for that contract.
(f)Multiple Awards.—
(1)Authority to make multiple awards.—
On the basis of one solicitation, the head of an executive agency may award separate task order contracts under this section for the same or similar services to 2 or more sources if the solicitation states that the head of the executive agency has the option to do so.
(2)Content of solicitation.—
In the case of a task order contract for advisory and assistance services to be entered into under this section, if the contract period is to exceed 3 years and the contract amount is estimated to exceed $10,000,000 (including all options), the solicitation shall—
(A)provide for a multiple award authorized under paragraph (1); and
(B)include a statement that the head of the executive agency may also elect to award only one task order contract if the head of the executive agency determines in writing that only one of the offerors is capable of providing the services required at the level of quality required.
(3)Nonapplication.—
Paragraph (2) does not apply in the case of a solicitation for which the head of the executive agency concerned determines in writing that, because the services required under the contract are unique or highly specialized, it is not practicable to award more than one contract.
(g)Contract Modifications.—
(1)Increase in scope, period, or maximum value of contract only by modification of contract.—
A task order may not increase the scope, period, or maximum value of the task order contract under which the order is issued. The scope, period, or maximum value of the contract may be increased only by modification of the contract.
(2)Use of competitive procedures.—
Unless use of procedures other than competitive procedures is authorized by an exception in section 3304(a) of this title and approved in accordance with section 3304(e) of this title, competitive procedures shall be used for making such a modification.
(3)Notice.—
Notice regarding the modification shall be provided in accordance with section 1708 of this title and section 8(e) of the Small Business Act (15 U.S.C. 637(e)).
(h)Contract Extensions.—
(1)When contract may be extended.—
Notwithstanding the limitation on the contract period set forth in subsection (c) or in a solicitation or contract pursuant to subsection (f), a contract entered into by the head of an executive agency under this section may be extended on a sole-source basis for a period not exceeding 6 months if the head of the executive agency determines that—
(A)the award of a follow-on contract has been delayed by circumstances that were not reasonably foreseeable at the time the initial contract was entered into; and
(B)the extension is necessary to ensure continuity of the receipt of services pending the award of, and commencement of performance under, the follow-on contract.
(2)Limit of one extension.—
A task order contract may be extended under paragraph (1) only once and only in accordance with the limitations and requirements of this subsection.
(i)Inapplicability to Certain Contracts.—
This section does not apply to a contract for the acquisition of property or services that includes acquisition of advisory and assistance services if the head of the executive agency entering into the contract determines that, under the contract, advisory and assistance services are necessarily incident to, and not a significant component of, the contract.

Legislative History

Notes & Related Subsidiaries

Historical and Revision Notes

Revised SectionSource (U.S. Code)Source (Statutes at Large) 4105(a)41:253i(i).June 30, 1949, ch. 288, title III, § 303I, as added Pub. L. 103–355, title I, § 1054(a), Oct. 13, 1994, 108 Stat. 3262. 4105(b)41:253i(a). 4105(c)(1)41:253i(b). 4105(c)(2)41:253i note.Pub. L. 109–364, div. A, title VIII, § 834(b), (c) (related to (b)), Oct. 17, 2006, 120 Stat. 2333. 4105(d)41:253i(c). 4105(e)41:253i(d). 4105(f)41:253i(e). 4105(g)41:253i(f). 4105(h)41:253i(g). 4105(i)41:253i(h). In subsection (b)(1), the words “(as defined in section 253k of this title)” are omitted as unnecessary. In subsection (c)(2)(C), the words “Committee on Oversight and Government Reform” are substituted for “Committee on Government Reform” on authority of Rule X(1)(m) of the Rules of the House of Representatives, adopted by House Resolution No. 6 (110th Congress, January 5, 2007). Senate Revision

Amendments

enate amendment to the bill effectively struck out subsec. (c)(2) and redesignated subsec. (c)(1) as (c). See S. Amdt. 4726 (111th Cong.), 156 Cong. Rec. 18683 (2010).

Reference

Citations & Metadata

Citation

41 U.S.C. § 4105

Title 41, Public Contracts

Last Updated

Sep 22, 2026

Release point: 119-110