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TIER I CORB 2026 Certification Exam | 500+ Exam Questions & Verified Answers | FAR Parts, Federal Contracting, Acquisition Planning, COR Responsibilities & Contract Administration

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Prepare for the TIER I CORB 2026 Certification Exam with this comprehensive study guide featuring 500+ expertly verified exam questions and answers covering the core principles of Federal Acquisition Regulation (FAR), Department of Defense (DoD) contracting, acquisition planning, contract administration, Contracting Officer's Representative (COR) responsibilities, and federal procurement policies. Organized in a structured question-and-answer format, this resource is designed to strengthen acquisition knowledge, reinforce regulatory compliance, and help contracting professionals successfully prepare for TIER I CORB certification examinations, workforce qualification assessments, and federal acquisition career development. This study guide provides in-depth coverage of Federal Acquisition Regulation (FAR) Parts 1–52, Contracting Officer (CO) authority, Contracting Officer's Representative (COR) duties and limitations, acquisition planning, Determinations and Findings (D&F), unauthorized commitments, ratification procedures, ethics in federal procurement, procurement integrity, organizational conflicts of interest (OCI), fraud prevention, System for Award Management (SAM), contract closeout procedures, FPDS reporting, contract synopsis requirements, sole-source acquisitions, Justification and Approval (J&A), competition requirements, market research, acquisition strategies, Independent Government Estimates (IGE), responsibility determinations, suspension and debarment, commercial item acquisitions, simplified acquisition procedures (SAP), Blanket Purchase Agreements (BPA), purchase orders, price analysis, cost analysis, contract pricing, Lowest Price Technically Acceptable (LPTA) evaluations, tradeoff source selection, contract types, fixed-price and cost-reimbursement contracts, options, small business programs, Service Contract Labor Standards, Berry Amendment, Anti-Deficiency Act (ADA), claims and disputes, bid protests, Government Accountability Office (GAO) protests, agency protests, Statements of Work (SOW), Performance Work Statements (PWS), contract modifications, Requests for Equitable Adjustment (REA), bilateral and unilateral modifications, contract administration, inspection and acceptance, FAR compliance, DFARS requirements, AFARS guidance, procurement planning, source selection, contract performance management, and federal acquisition best practices. The guide incorporates practical contracting scenarios, regulatory references, and policy-based questions that reflect the competencies expected of contracting professionals working within the U.S. Government acquisition workforce. The content aligns with the learning objectives of the TIER I Contracting Officer Review Board (CORB) certification process and reflects current principles established by the Federal Acquisition Regulation (FAR), Defense Federal Acquisition Regulation Supplement (DFARS), and Army Federal Acquisition Regulation Supplement (AFARS). This study guide serves as an excellent supplementary resource for Contract Specialists, Contracting Officers, Contracting Officer's Representatives (CORs), Acquisition Professionals, Procurement Analysts, Defense Acquisition Workforce members, and federal employees preparing for certification boards, promotion panels, warrant programs, and professional development within civilian and Department of Defense acquisition organizations. References (APA 7th Edition): Federal Acquisition Regulation. (2024). Federal Acquisition Regulation (FAR). U.S. General Services Administration, Department of Defense, and National Aeronautics and Space Administration. Department of Defense. (2024). Defense Federal Acquisition Regulation Supplement (DFARS). U.S. Department of Defense. Department of the Army. (2024). Army Federal Acquisition Regulation Supplement (AFARS). U.S. Department of the Army. Defense Acquisition University. (2024). Contracting Professional Credential and Federal Acquisition Learning Resources. Defense Acquisition University. Suitable for Students and Professionals in: TIER I CORB Certification Programs Federal Contracting Workforce Contracting Officer (CO) Training Contracting Officer's Representative (COR) Training Contract Specialist Programs Acquisition Workforce Development Programs Defense Acquisition University (DAU) Courses Department of Defense (DoD) Acquisition Programs Federal Procurement and Acquisition Courses Government Contract Administration Programs Civilian and Military Acquisition Career Fields Keywords: TIER I CORB, CORB Certification, Contracting Officer Representative, COR, Contracting Officer, Federal Acquisition Regulation, FAR, DFARS, AFARS, Federal Contracting, Government Contracting, Acquisition Planning, Contract Administration, Procurement Integrity, Ethics in Contracting, Determinations and Findings, D and F, Unauthorized Commitment, Ratification, SAM Registration, System for Award Management, Contract Closeout, FPDS, Market Research, Justification and Approval, J and A, Sole Source Acquisition, Competition Requirements, Independent Government Estimate, IGE, Responsibility Determination, Suspension, Debarment, Commercial Items, Simplified Acquisition Procedures, SAP, Blanket Purchase Agreement, BPA, Price Analysis, Cost Analysis, Contract Pricing, LPTA, Tradeoff Source Selection, Contract Types, Fixed Price Contract, Cost Reimbursement Contract, Small Business Programs, Service Contract Labor Standards, Berry Amendment, Anti Deficiency Act, Claims, Bid Protest, GAO Protest, Agency Protest, Statement of Work, SOW, Performance Work Statement, PWS, Contract Modification, Bilateral Modification, Unilateral Modification, Request for Equitable Adjustment, REA, Inspection and Acceptance, Federal Procurement, Government Acquisition, Defense Acquisition, Exam Questions, Study Guide

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Institution
Contracting Officer Representative
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Contracting officer representative

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TIER I CORB 2026 Exam
Questions and Answers |
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What do you envision is the role of your CORs? When are you required

to appoint one? What authorities are you allowed to delegate to your

COR? What authorities are not delegable to the COR? - ANSWER

✔✔1.604 - A Contracting Officer's Representative (COR) is an individual

designated by the Contracting Officer to act as their representative in the

technical monitoring and surveillance of a contract. These individuals

serve as subject matter experts and perform surveillance of a contract to

insure that the goods and services obtained meet the government's

acceptance standards. A COR may be designated other administration

duties by the contracting officer. A COR should be nominated by the

,requirements official as early as practicable in the acquisition process. A

COR assist in the technical monitoring or administration of a contract.

(A) Contracting officers shall designate a COR for all service contracts,

including both firm-fixed-price and other than firm-fixed-price contracts,

awarded by a DoD component or by any other Federal agency on behalf

of DoD. The surveillance activities performed by CORs should be

tailored to the dollar value/complexity of the specific contract for which

they are designated. The COR does not have the authority to take any

action, either directly or indirectly, that could change the price/cost or

fee, quantity, quality, scope, delivery schedule, labor mix or other terms

and conditions of the contract and/or task order. Only the contracting

officer has the authority to make such changes. CORs do not have

contractual authority to issue directions or changes to any contract or

purchase order that affects price, quality, quantity, delivery, or any other

aspect that will change the terms and conditions of the contract. In cases

where changes have been made by unauthorized personnel, the

Procuring Contracting Officer (PCO) must be immediately notified. The

PCO will then determine if the work performed was within the scope of

the original contract. If the work is determined to be outside the scope o

What is a Contracting Officer? What is the authority given to a

Contracting Officer? What are the responsibilities of a Contracting

,Officer? - ANSWER ✔✔1.602 - A Contracting Officer is a person who

has been given authority to enter into, administer, and/or terminate

contracts and make related determinations and findings for the U.S.

Government.

Contracting Officers are responsible for ensuring performance of all

necessary actions for effective contracting, ensuring compliance with the

terms of the contract, and safeguarding the interests of the United States

in its contractual relationships.

One of your specialists is new to contracting policies and procedures

and asks you to explain a "D&F". How would you describe a D&F? -

ANSWER ✔✔1.7 - . Determination and Findings" means a special

form of written approval by an authorized official that is required by

statute or regulation as a prerequisite to taking certain contract actions.

The "determination" is a conclusion or decision supported by the

"findings.''

The findings are statements of fact or rationale essential to support the

determination and must cover each requirement of the statute or

regulation.




3
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED

, What is an unauthorized commitment? What steps do you take in

evaluating, processing and approving an unauthorized commitment? -

ANSWER ✔✔1.602-3 - An unauthorized commitment is means an

agreement that is not binding solely because the Government

representative who made it lacked the authority to enter into that

agreement on behalf of the Government. The act of approving an

unauthorized commitment is called a ratification. Unauthorized

commitments may be ratified only when the conditions of FAR 1.602-3(c)

are met. a) Use of appropriated funds, b) Provided to or accepted by the

Government - received a benefit, c) Ratification official has the authority

to ratify, d) Resulting contract must otherwise be proper, e) Price must

be fair & reasonable, f) Funds are available and were available at the

time the action occurred, g) The CO recommends payments, h) It is IAW

other requirements and limitations

price is fair and reasonable

funds are available

funds were available at the time of the UAC

USG recieved benefit

KO has the authority to ratify

KO recommends payment

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