Deleted and Replaced: Section I: Contract Clauses Clause I.28 52.219-9 – Small Business Subcontracting Plan (Jan 2017) Alternate II (Nov 2016) is hereby deleted and replaced with Clause I.28 52.219-9 – Small Business Subcontracting Plan (Jun 2020) Alternate II (Nov 2016).

Deleted and Replaced: Section J: List of Documents, Exhibits, and Other Attachments* Attachment A, Personnel (Appendix A) effective May 15, 2017, is deleted and Attachment A, Personnel (Appendix A), effective August 7, 2020, is hereby incorporated into this contract by reference.

Deleted and Replaced: Section J: List of Documents, Exhibits, and Other Attachments Attachment F, Operating and Administrative Requirements (List B) is updated as follows:

Deleted and Replaced: Section H, Special Contract Requirements Clause H.53 Paid leave under Section 3610 of the Coronavirus Aid, Relief, and Economic Security Act (CARES Act) to maintain employees and subcontractors in a ready state is added.

Deleted and Replaced: Section H, Special Contract Requirements Clause H.52 Definition of Unusually Hazardous or Nuclear Risks and Other Terms for purposes of FAR Clause 52.250-1, Indemnification Under Public Law 85-804 (April 1984) Alt 1 (Apr 1984) is added.

Deleted and Replaced: Section J: List of Documents, Exhibits, and Other Attachments* Section J, Attachment C, FY 2019 Small Business Subcontracting Plan is deleted and replaced with FY 2020 Small Business Subcontracting Plan

Deleted and Replaced: Section C: Description/Specification/Statement of Work Section C is updated by removing a sentence regarding classified work that is no longer relevant.

Deleted and Replaced: Section J: List of Documents, Exhibits, and Other Attachments* Attachment J, Performance Evaluation and Measurement Plan. FY2019 Performance Evaluation and Measurement Plan, dated May 14, 2019 is deleted and replaced with the FY 2020 Performance Evaluation and Measurement Plan, dated September 30, 2019 and is incorporated into the contract by reference.

Deleted and Replaced: Section J: List of Documents, Exhibits, and Other Attachments* Section J, Attachment F, Operating and Administrative Requirements (List B) Deleted: DOE O 205.1B Chg 3 (PgChg) CRD Department of Energy Cyber Security Program Chg 3 (PgChg): 04/29/14 Added: DOE O 205.1C CRD Department of Energy Cyber Security Program Approved: 05/15/19 Section C: Description/Specification/Statement of Work Section C, C.4, Paragraph (b)(3)

Deleted and Replaced: Section J: List of Documents, Exhibits, and Other Attachments* Section J, Attachment F, Operating and Administrative Requirements (List B) is deleted and replaced as follows:

Deleted and Replaced: Section J: List of Documents, Exhibits, and Other Attachments* Attachment J, Performance Evaluation and Measurement Plan. FY 2019 Performance Evaluation and Measurement Plan, dated March 28, 2019 is deleted and replaced with the FY 2019 Performance Evaluation and Measurement Plan, dated May 14, 2019 and is incorporated into the contract by reference.

Added: Section H, Special Contract Requirements Clause H.51, Workforce Restructuring is incorporated into Section H. Deleted and Replaced: Section J: List of Documents, Exhibits, and Other Attachments* Attachment K, Diversity Plan. CY 2017 is deleted and replaced with CY 2019 Diversity Plan and incorporated into the contract by reference.

Deleted and Reserved: Section H, Special Contract Requirements Clause H.28, Employee Concerns Program is deleted and reserved Section J: List of Documents, Exhibits, and Other Attachments* Section J, Attachment F, Operating and Administrative Requirements (List B)

Deleted and Replaced: Section H: Special Contract Requirements Clause H.50 Real Property Asset Management was incorporated into Section H.

Deleted and Replaced: Section H: Special Contract Requirements Clause H.9 Responsible Corporate Official is deleted and replaced to reflect Ronald Townsend as the Responsible Corporate Official.

Deleted and Replaced: Section J: List of Documents, Exhibits, and Other Attachments* Attachment F, Operating and Administrative Requirements (List B)

Deleted and Replaced: Section J: List of Documents, Exhibits, and Other Attachments Attachment J, Performance Evaluation and Measurement Plan. FY 2018 Performance Evaluation and Measurement Plan, dated March 12, 2018, is deleted and replaced with the FY 2018 Performance Evaluation and Measurement Plan, dated June 22, 2018 and is incorporated by reference.

Deleted and Replaced: Section H: Special Contract Requirements Section H, Clause H.42, Non-Federal Agreement for Commercializing Technology (Pilot) with H.42, Agreements for Commercializing Technology

Deleted and Replaced: Section J: List of Documents, Exhibits, and Other Attachments* Section J, Attachment J, Performance Evaluation and Measurement Plan. FY 2018 Performance Evaluation and Measurement Plan, dated September 30, 2017, is deleted and replaced with the FY 2018 Performance Evaluation and Measurement Plan, dated March 12, 2018, and is incorporated by reference.

Added: Section H: Special Contract Requirements Section H, Clause H.49, Contractor Assurance System is incorporated into Part I, Section H, Special Contract Requirements.