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General Services Acquisition Manual / Regulation (GSAM/R)

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Change 200 GSA Acquisition Handbook

01/15/2026

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Open sub parts of Part 501 - General Services Administration Acquisition Regulation System.

Part 501 - General Services Administration Acquisition Regulation System

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Open sub parts of Part 502 - Definitions of Words and Terms.

Part 502 - Definitions of Words and Terms

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Open sub parts of Part 503 - Improper Business Practices and Personal Conflicts of Interest.

Part 503 - Improper Business Practices and Personal Conflicts of Interest

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Open sub parts of Part 504 - Administrative Matters.

Part 504 - Administrative Matters

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Open sub parts of Part 505 - Publicizing Contract Actions.

Part 505 - Publicizing Contract Actions

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Open sub parts of Part 506 - Competition Requirements.

Part 506 - Competition Requirements

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Open sub parts of Part 507 [Reserved].

Part 507 [Reserved]

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Open sub parts of Part 508 - Required Sources of Supplies And Services.

Part 508 - Required Sources of Supplies And Services

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Open sub parts of Part 509 - Contractor Qualifications.

Part 509 - Contractor Qualifications

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Open sub parts of Part 510 - Market Research.

Part 510 - Market Research

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Open sub parts of Part 511 - Describing Agency Needs.

Part 511 - Describing Agency Needs

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Open sub parts of Part 512 - Acquisition of Commercial Products and Commercial Services.

Part 512 - Acquisition of Commercial Products and Commercial Services

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Open sub parts of Part 513 - Simplified Acquisition Procedures.

Part 513 - Simplified Acquisition Procedures

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Open sub parts of Part 514 - Sealed Bidding.

Part 514 - Sealed Bidding

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Open sub parts of Part 515 - Contracting by Negotiation.

Part 515 - Contracting by Negotiation

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Open sub parts of Part 516 - Types of Contracts.

Part 516 - Types of Contracts

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Open sub parts of Part 517 - Special Contracting Methods.

Part 517 - Special Contracting Methods

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Open sub parts of Part 518 - Emergency Acquisitions.

Part 518 - Emergency Acquisitions

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Open sub parts of Part 519 - Small Business Programs.

Part 519 - Small Business Programs

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Open sub parts of Part 520 [Reserved].

Part 520 [Reserved]

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Open sub parts of Part 521 [Reserved].

Part 521 [Reserved]

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Open sub parts of Part 522 - Application of Labor Laws to Government Acquisitions.

Part 522 - Application of Labor Laws to Government Acquisitions

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Open sub parts of Part 523 - Environment, Energy and Water Efficiency, Renewable Energy Technologies, Occupational Safety, and Drug-Free Workplace.

Part 523 - Environment, Energy and Water Efficiency, Renewable Energy Technologies, Occupational Safety, and Drug-Free Workplace

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Open sub parts of Part 524 - Protection of Privacy and Freedom of Information.

Part 524 - Protection of Privacy and Freedom of Information

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Open sub parts of Part 525 - Foreign Acquisition.

Part 525 - Foreign Acquisition

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Open sub parts of Part 526 - Other Socioeconomic Programs.

Part 526 - Other Socioeconomic Programs

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Open sub parts of Part 527 - Patents, Data, and Copyrights.

Part 527 - Patents, Data, and Copyrights

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Open sub parts of Part 528 - Bonds and Insurance.

Part 528 - Bonds and Insurance

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Open sub parts of Part 529 - Taxes.

Part 529 - Taxes

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Open sub parts of Part 530 - Cost Accounting Standards Administration.

Part 530 - Cost Accounting Standards Administration

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Open sub parts of Part 531 - Contract Cost Principles and Procedures.

Part 531 - Contract Cost Principles and Procedures

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Open sub parts of Part 532 - Contract Financing.

Part 532 - Contract Financing

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Open sub parts of Part 533 - Protests, Disputes, and Appeals.

Part 533 - Protests, Disputes, and Appeals

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Open sub parts of Part 534 - Major System Acquisition.

Part 534 - Major System Acquisition

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Open sub parts of Part 535 - Research and Development Contracting.

Part 535 - Research and Development Contracting

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Open sub parts of Part 536 - Construction and Architect-Engineer Contracts.

Part 536 - Construction and Architect-Engineer Contracts

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Open sub parts of Part 537 - Service Contracting.

Part 537 - Service Contracting

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Open sub parts of Part 538 - Federal Supply Schedule Contracting.

Part 538 - Federal Supply Schedule Contracting

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Open sub parts of Part 539 [Reserved].

Part 539 [Reserved]

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Open sub parts of Part 540 [Reserved].

Part 540 [Reserved]

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Open sub parts of Part 541 - Acquisition of Utility Services.

Part 541 - Acquisition of Utility Services

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Open sub parts of Part 542 - Contract Administration and Audit Services.

Part 542 - Contract Administration and Audit Services

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Open sub parts of Part 543 - Contract Modifications.

Part 543 - Contract Modifications

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Open sub parts of Part 544 - Subcontracting Policies and Procedures.

Part 544 - Subcontracting Policies and Procedures

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Open sub parts of Part 545 - Government Property.

Part 545 - Government Property

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Open sub parts of Part 546 - Quality Assurance.

Part 546 - Quality Assurance

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Open sub parts of Part 547 [Reserved].

Part 547 [Reserved]

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Open sub parts of Part 548 - Value Engineering.

Part 548 - Value Engineering

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Open sub parts of Part 549 - Termination of Contracts.

Part 549 - Termination of Contracts

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Open sub parts of Part 550 - Extraordinary Contractual Actions.

Part 550 - Extraordinary Contractual Actions

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Open sub parts of Part 552 - Solicitation Provisions and Contract Clauses.

Part 552 - Solicitation Provisions and Contract Clauses

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Open sub parts of Part 553 - Forms.

Part 553 - Forms

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Open sub parts of Part 570 - Acquiring Leasehold Interests in Real Property.

Part 570 - Acquiring Leasehold Interests in Real Property

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Open sub parts of Part 571 [Reserved].

Part 571 [Reserved]

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