Final RFP Engineering Services and Science Capability Augmentation (ESSCA) II

Amendment / Modification

This document is a "Clause and Provision Change Matrix" that details modifications made between the Draft Request for Proposal (RFP) and the Final RFP for the ESSCA II opportunity. It outlines changes to FAR and NFS clauses and provisions resulting from the Revolutionary FAR Overhaul (RFO) and associated Procurement Class Deviations (PCD).

Key actions noted for clauses and provisions include:

• Updated: Clauses and provisions revised to newer versions, often incorporating deviations (e.g., 1852.216-78 Firm Fixed Price, 1852.245-74 Identification and Marking of Government Equipment).
• Removed: Clauses and provisions deleted from the solicitation (e.g., 1852.211-70 Packaging, Handling, and Transportation, 52.204-2 Security Requirements).
• New: Clauses and provisions added to the solicitation (e.g., 52.240-90 Security Prohibitions and Exclusions).
• None: Clauses and provisions that remain unchanged.

The matrix details changes across various sections of the contract, including Section B (Supplies and Services), Section C (Descriptions/Specifications/SOW), Section D (Packaging and Marking), Section E (Inspection and Acceptance), Section F (Deliveries or Performance), Section G (Contract Financing), Section H (Clauses and Provisions), Section I (Contract Clauses), Section K (Representations, Certifications, and Other Statements of Offerors), Section L (Instructions, Conditions, and Notices to Offerors), and Section M (Evaluation Factors for Award).

This document serves as a reference to help offerors assess the impact of these changes on their proposals. The final RFP, inclusive of any amendments, takes precedence over this matrix. Offerors are encouraged to submit relevant questions by February 10, 2026, 2:00 p.m., Central Time.

Solicitation / RFP / RFQ

This solicitation (RFP No. 80MSFC26R0002) is for Engineering Services and Science Capability Augmentation (ESSCA) II. The primary goal is to provide engineering and science skills augmentation support and related services to NASA's Marshall Space Flight Center (MSFC), including Michoud Assembly Facility (MAF) and Stennis Space Center (SSC). Support may also extend to NASA Headquarters and other NASA Centers.

• Services: Broad spectrum of engineering and science disciplines including research, design, development, analysis, testing, operations, and sustaining engineering.

• Deliverables: End-item deliverables may include software, trade studies, support equipment, prototypes, flight hardware, electronic systems, mockups, test articles, training hardware, laboratory test equipment, tooling, manufacturing demonstration articles, and research instruments.

• Performance: Work will be controlled via Task Orders (TOs) for skills augmentation and Delivery Orders (DOs) for end-item deliverables.

• Security: A Top Secret facility clearance is required at the time of proposal submission.

• AI Disclosure: Offerors must disclose any intent to propose or plan to use Artificial Intelligence (AI) to perform contract requirements.

• Contract Type: Hybrid indefinite-delivery, indefinite-quantity (IDIQ) contract with the ability to issue Cost-Plus-Award-Fee (CPAF), Cost-Plus-Fixed-Fee (CPFF), and Firm-Fixed-Price (FFP) orders.

• Period of Performance: Four-month phase-in period, followed by a five-year base ordering period, with an option for a three-year additional ordering period.

• Anticipated Award Date: September 30, 2026.

• Proposal Due Date: March 11, 2026, 2:00 p.m. Central Time (CT).

• Submission Method: Proposals must be submitted via NASA’s Enterprise File Sharing and Sync (EFSS) Box.

• Questions Due: February 10, 2026, 2:00 p.m. CT.

• Evaluation: Best value tradeoff between Mission Suitability, Cost, and Past Performance. Mission Suitability and Past Performance combined are significantly more important than Cost.

• NAICS Code: 541715 (Research and Development in the Physical, Engineering, and Life Sciences), Size Standard: 1,300 employees.

• Competition: Full and open competition.

• The solicitation incorporates changes related to the Revolutionary FAR Overhaul (RFO). Offerors should interpret "shall" and "must" as having the same meaning.

• Potential Organizational Conflicts of Interest (OCI) are identified; Offerors must submit an OCI Plan.

• Several appendices and attachments are referenced, including Q&A, Change Log, PWS, DPD, and various plans.

Questions & Answers / Clarifications

This document contains questions submitted by potential offerors and the Government's responses regarding the 80MSFC26R0002 DRFP (Draft Request for Proposal) for the ESSCA II contract. It clarifies various aspects of the solicitation, including proposal preparation, evaluation criteria, contract terms, and specific requirements.

• Font and Page Limitations: Font size for tables and graphics can be 10pt, and page count limitations for Volume I (Mission Suitability) have been increased to 215 pages. Title pages and tables of contents are excluded from page counts.
• Personnel Requirements: Key Personnel requirements have been modified to "WCSF3 Essential Personnel." Past performance contract minimums and subcontractor thresholds have been reviewed and deemed appropriate.
• Pricing and Costing: Clarifications were provided on the inclusion of phase-in costs, fee/profit application to different contract types (CPAF, CPFF, FFP), and the use of benchmark vs. incumbent labor rates. Specifics on how to handle CMO rates and fringe rates in the Excel Pricing Model were also addressed.
• Subcontracting: The term "applicable subcontractor" has been removed. Guidance is provided on which tabs in the cost volume are to be completed by prime offerors and major subcontractors. Subcontractor size relevancy thresholds were reviewed.
• Innovations: The RFP requirements related to innovations have been changed, and offerors are encouraged to propose no-cost innovations. These will be captured in Attachment J-1 if incorporated.
• Contract Clauses and Requirements: Several clauses were updated or removed, including those related to minimum wages and past performance instructions. Specific requirements for ATOMS Suite extensibility and delivery have been revised or removed.
• Submission Instructions: Guidance was provided on file naming conventions, the submission of cost volumes by subcontractors, and the format of certain attachments.

This document significantly impacts the solicitation by providing clarifications and revisions to numerous sections. Offerors must review these responses carefully to ensure their proposals accurately address the updated requirements, submission instructions, and evaluation criteria. Key changes include adjustments to page limits, personnel designations, pricing models, subcontracting definitions, and specific technical requirements.

Amendment / Modification

This document summarizes changes made to a draft solicitation, which was posted on www.SAM.gov on September 30, 2025. The changes are a result of industry and internal comments and questions. Key modifications include:

• Clause/Provision Updates:
  • Changes from 'Shall' to 'Must' where appropriate, particularly concerning the Revolutionary FAR Overhaul (RFO) and associated NASA Procurement Class Deviations (PCD).
  • Updated clauses and provisions in the FAR and NASA FAR Supplement to align with RFO and PCD.
  • Modifications to CLIN Table 0004.
  • Revisions to the award fee evaluation period and related clauses (e.g., 1852.216-76).
  • Updates to clauses regarding skills augmentation services transition (e.g., H.1, H.2).
  • Changes to the requirement for an initial ACA (MSFC 52.209-91(e)) to include MARVELS.
  • Updates to training requirements, referencing Attachment J-24.
  • Removal or modification of various FAR clauses related to labor standards and taxes.
  • Adjustments to contract performance availability dates (e.g., from Sept 30, 2026 to Sept 30, 2027).
  • Changes in subcontracting requirements and approvals.
  • Updates to ATOMS Suite development, maintenance, and delivery requirements.
  • Revisions to contract management and skill category definitions.
  • Modifications to requirements for technical skills, engineering products, and IT systems.
  • Updates to cybersecurity and privacy role-based training requirements.
  • Changes in the definition and requirements for C-SCRM plans.
  • Revisions to organizational management structure descriptions.
  • Updates to the Pursuits Culture and Partnering Plan.
  • Changes in how NASA actions or dependencies are identified.
  • Revisions to the Performance Requirements Summary (PRS) application and surveillance techniques.
  • Modifications to consequences of contractor failure to perform, including impact on award fee determination.
  • Removal of a section related to Period of Performance Table.
  • Updates to award fee evaluation criteria and subcontract management factors.
  • Removal of specific contract negotiated rates.
  • Revisions to requirements for essential personnel minimum qualifications.
  • Updates to ATOMS Suite development standards and compliance.
  • Changes in APT version generation and technical direction procedures.
  • Clarifications on equipment and materials procurement for Task Orders.
  • Revisions to title notes and tables related to wage determinations.
  • Updates to PCD (Procurement Class Deviation).
  • Removal of specific clauses related to TCP Total Compensation Plan.
  • Revisions to proposal page limitation instructions, including font styles, margins, and excluded pages.
  • Updates to the designated point of contact and submission deadlines for questions.
  • Revisions to PWS sections to align with Past Performance instructions.
  • Added two new questions to the Past Performance questionnaire.
  • Updates to organization charts and cost category descriptions.
  • Revisions to ATOMS Suite requirements matrix instructions and response codes.
  • Updates to evaluation language for Subfactor B.
  • Inclusion of adjectival ratings, definitions, and percentile ranges table.
  • Revisions to how overall relevancy of referenced contracts is determined for Offerors and subcontractors, including joint ventures.
  • Updated Attachment L-5-A with additional 2025 data.
  • Revisions to Past Performance Content Element WYE Table and PWS Element WYE Percentage Assignment Table.
  • Updates regarding company acquisitions/mergers/restructure disclosure requirements.
  • Revisions to the definition of a major subcontractor.
  • Changes in financial capability submission requirements, including references to major subcontractors.
  • Updates to fee/profit structure requirements and added responsibility for ensuring formula accuracy.
  • Revisions to electronic submission instructions for proposals.
  • Updates to Attachment L-1, including subcontractor compliance and submission of total subcontract dollars.
  • Revisions to labor rate requirements and wage determination applicability.
  • Updates to the Basis of Estimate (BOE) summary.
  • Changes in financial capability submission requirements, including references to major subcontractors.
  • Updates to fee/profit structure requirements and added responsibility for ensuring formula accuracy.
  • Revisions to electronic submission instructions for proposals.
  • Updates to Attachment L-1, including subcontractor compliance and submission of total subcontract dollars.
  • Revisions to labor rate requirements and wage determination applicability.
  • Updates to the Basis of Estimate (BOE) summary.

This amendment impacts numerous sections of the solicitation, including FAR clauses, NASA clauses, PWS sections, and various attachments and appendices related to proposal preparation, evaluation criteria, and contract performance. Specific sections affected are detailed in the change log.

Bidders should carefully review all changes to ensure their proposals are compliant with the updated requirements. Key areas that may impact submissions include revised proposal page limitations, updated evaluation criteria, and new or modified submission instructions for various volumes and attachments. The deadline for questions and comments has also been extended.

Solicitation / RFP / RFQ

This document is a solicitation (Solicitation Number: 80MSFC26R0002) for engineering support services. It outlines the requirements for a potential contract to be awarded by the MSFC PS50 Engineering Support Branch, Office of Procurement.

The solicitation details various CLINs (Contract Line Item Numbers) covering different types of services and deliverables, including:

• Phase-in services

• MSFC, SSC Skills Augmentation (Cost Plus Award Fee, Cost Plus Fixed Fee)

• MSFC End-Item Deliverables (Cost Plus Fixed Fee, Firm Fixed Price)

• Other Centers Skills Augmentation (Cost Plus Award Fee, Cost Plus Fixed Fee)

• Optional Ordering Periods and options to extend services.

• The contract type is an Indefinite Delivery, Indefinite Quantity (IDIQ) contract.

• The maximum potential Not-to-Exceed (NTE) value is $3,248,200,000.

• Periods of performance are detailed for Phase-in, Base Ordering Period, Optional Ordering Period, and Option to Extend Services.

• Specific clauses related to contract administration, data requirements, packaging and marking, inspection and acceptance, and place of performance are included.

• Offers are due by 2:00 PM local time on March 11, 2026.

• The solicitation includes Sections L (Instructions, Conditions, and Notices to Offerors) and M (Evaluation Factors for Award), which will detail submission requirements and evaluation criteria.

• Not explicitly stated in the provided sections, but typical for solicitations of this nature, specific eligibility or set-aside information would be detailed in the full solicitation document.

• The document includes numerous FAR and NFS clauses incorporated by reference and in full text, covering a wide range of contractual requirements.

• Attachment J-1 (Performance Work Statement) is referenced for detailed description of services.

• Attachment J-7 (Schedule of Rates and Description of Labor Categories) is referenced for NTE fixed fee rates.

Form / Attachment / Pricing Sheet

This document, titled "Installation Accountable Property List," serves as an attachment (Attachment J-12-A) to the solicitation. It details the government-furnished equipment (GFE) or accountable property that will be part of the installation. Bidders should review this list to understand the existing assets that may be relevant to the performance of the contract.

The list includes:

• Equipment Control Number (ECN)
• Item Name
• Manufacturer
• Model Number
• Serial Number
• End User Organization Code
• Federal Supply Class (FSC) Code

This list provides potential vendors with an inventory of accountable property at the installation. Understanding this inventory is crucial for bidders to assess the scope of work, potential integration requirements, and any logistical considerations related to managing or utilizing these assets as part of their proposed solution. It helps in accurately estimating resources and planning for contract execution.

Form / Attachment / Pricing Sheet

This Excel file, "ESSCA II RFP Number 80MSFC26R0002 ESSCA II Attachment L-1 Excel Pricing Model.xlsx", serves as Attachment L-1, an Excel Pricing Model (EPM) for offerors and major subcontractors to complete. It is crucial for proposal submission accuracy.

• Instructions: Offerors must complete highlighted yellow cells and ensure accuracy. Modifications to non-highlighted cells require highlighting in red with an explanation.
• Tabs:
  • Index: Provides an overview of all tabs and their purpose.
  • A - Summary: Summarizes total contract costs, including Phase-In, Labor, Other Direct Costs (ODC), and End Item Delivery. Phase-in price is capped at $600,000. ODC costs do not include workforce payments. Fee applies to labor and applicable indirect burdens, not ODC.
  • B Tabs (B-1 to B-11): Detail IDIQ Rate Development for prime offerors and major subcontractors by location (MSFC, AFRC, ARC, GRC, GSFC, HQ, JSC, KSC, LaRC, MAF, SSC). These tabs require mapping labor categories, calculating fully burdened labor rates, and including subcontractor fees where applicable.
  • C - Prod Factor: Contains a table for calculating productive hours per WYE (Work Year Equivalent) for each contract year.
  • D - CMO: For the prime offeror to compute a Contract Management Overhead (CMO) rate.
  • E - Indirect: Outlines the calculation of Overhead, G&A, and other indirect rates, requiring cost history and projections.
  • F - Fringe: Details the development of fringe benefit rates, including payroll additives and cost history.
  • G - IDIQ Comp: For the prime offeror to develop composite IDIQ rates by contract year and center.
  • H - CAOF: Cognizant Audit Office Form to identify the agency approving systems and forward pricing rates.
  • I - WYE Dist: For the prime to detail the distribution of prime/subcontractors by labor category.

This document is essential for developing and submitting a compliant cost proposal. Bidders must carefully complete the relevant sections, particularly the labor rate development, productive hours, indirect rates, and WYE distribution, ensuring all highlighted areas are addressed and calculations are accurate.

Solicitation / RFP / RFQ

This document is a Virtual Industry Briefing for the Engineering Services and Science Capability Augmentation (ESSCA) II acquisition, related to a Draft Request for Proposal (DRFP) with solicitation number 80MSFC26R0002. The primary purpose of the contract is to acquire engineering and science skills augmentation support and related services for the Marshall Space Flight Center (MSFC), including the Michoud Assembly Facility (MAF) and Stennis Space Center (SSC). The scope also includes potential support for NASA Headquarters and other NASA Centers. The briefing aims to highlight key requirements of the DRFP and serve as an aid in proposal preparation.

• Contract Type: Hybrid Indefinite-Delivery, Indefinite-Quantity (IDIQ) contract, allowing for Cost-Plus-Award-Fee (CPAF), Cost-Plus-Fixed-Fee (CPFF), and Firm-Fixed-Price (FFP) task/delivery orders.

• NAICS Code: 541715 (Research and Development in the Physical, Engineering, and Life Sciences).

• Size Standard: 1,300 employees.

• Work Categories: Skills augmentation support and end-item deliverables.

• Performance Work Statement (PWS) Elements: Includes Contract Scope, Contract Management Operations and Control (e.g., Program Management, Planning and Control, Facilities, ATOMS Suite, Order Management, Financial Management, Contractor Procurements, Technology/Innovation, Phase-In/Out, Technical Direction, IT Purchase Authorization, Section 508 Compliance, Records Management), Contract Major Skill Categories (e.g., Aerosciences, Avionics, Flight Software, Materials Research, Operability, Optics, Propulsion, Scientific Disciplines, Structural/Mechanical, Systems Analysis, Test Design, Thermal/Fluids), and End-Item Deliverables (e.g., concepts of operations, trade studies, designs, analyses, hardware, software, training, operating manuals).

• Key Deliverables: Products may include concepts of operations, trade studies, designs, analyses, hardware, software, training materials, and operating manuals.

• Special Requirements: Includes adherence to Section 508 Compliance, IT Purchase Authorization, Records Management, Safety and Health regulations, and potential Top Secret facility clearance for offerors.

• Maximum Potential Value: $3,248,200,000 (including options).

• Period of Performance: Includes a phase-in period (not to exceed 4 months), a 5-year base ordering period, and a 3-year optional ordering period, with a 6-month option to extend services (FAR 52.217-8).

  • Phase-in: October 1, 2026 - January 31, 2027
  • Base Ordering Period: February 1, 2027 - January 31, 2032
  • Optional Ordering Period: February 1, 2032 - January 31, 2035
  • Option to Extend Services: February 1, 2035 - July 31, 2035

• CLIN Structure: Detailed CLINs for Phase-In, Base Ordering Period, Optional Ordering Period, and Option to Extend Services are provided, with varying contract types (CPAF, CPFF, FFP).

• Proposal Submission: Full and open competition. Proposals are tentatively due January 15, 2026, but the schedule is being re-planned. Proposals are to be submitted in four volumes: Mission Suitability (175 pages), Cost (No Page Limit), Past Performance (50 pages), and Contract (No Page Limit). Attachment L-2 (Past Performance Questionnaire) is excluded from page limits.

• Evaluation Factors: Best value tradeoff between Mission Suitability, Cost, and Past Performance. Mission Suitability is the most important individual factor, followed by Past Performance, then Cost. Mission Suitability and Past Performance combined are significantly more important than Cost.

• Mission Suitability Subfactors: Management and Technical Approach (450 points), Workforce Sustainment and Total Compensation (400 points), and Small Business (150 points).

• Cost Volume: Will be evaluated using an Excel Pricing Model (EPM). Offerors must use the provided model and not alter WYE requirements or skill mix. Consistency between Mission Suitability and Cost volumes is critical.

• Past Performance: Evaluated based on federal, state, local government, and private contracts within the last five years, with a minimum of 12 months of performance. Limited to six described contracts/subcontracts. Not numerically scored, but assessed using adjectival ratings.

• Organizational Conflict of Interest (OCI): An OCI Plan is required with the proposal and will be evaluated as an eligibility requirement.

• Small Business Goals: Specific subcontracting goals are outlined for various socioeconomic categories, including Small Business (40.0%), WOSB (10.0%), SDB (5.0%), VOSB (6.0%), SDVOSB (5.0%), HUBZone (3.5%), and HBCU/MI (0.6%).

• Small Business Subfactor: A small business prime will automatically receive 150 points for the Small Business subfactor.

• The final solicitation will take precedence over any remarks in this briefing.

• Acquisition schedule and contract period dates are subject to change; monitor SAM.gov for updates.

• Questions/comments must be submitted electronically by December 15, 2025, 2:00 p.m. CT.

• Industry briefing charts and attendee lists will be posted to SAM.gov.

• NASA MSFC intends to align the ESSCA II acquisition with regulatory changes from the Revolutionary FAR Overhaul.

Other / Unclassified

This document is an attendee list for the "80MSFC26R0002 ESSCA II Virtual Industry Day". It provides the names, companies, and contact information for individuals who attended the virtual event.

This list can be valuable for potential bidders by identifying key personnel and companies that participated in the industry day. It offers direct contact information for networking, follow-up inquiries, and understanding the competitive landscape or potential teaming partners related to the ESSCA II opportunity.

Form / Attachment / Pricing Sheet

This document is an "Interested Parties List" dated as of December 15, 2025, for the ESSCA II opportunity. It serves to identify companies that have expressed interest in the opportunity.

• Lists company names.
• Provides optional contact names.
• Includes phone numbers.
• Provides email addresses for contacts.

This list can help potential bidders identify other interested parties, potential teaming partners, or competitors for the ESSCA II opportunity. It provides contact information for companies that have already shown interest.

Form / Attachment / Pricing Sheet

This document, "Attachment J-12-A Installation Accountable Property List.xlsx", provides a detailed list of accountable property associated with the installation. This list is likely intended for bidders to understand the existing assets or equipment that may be relevant to the opportunity, potentially for inventory, maintenance, or transfer purposes.

The spreadsheet contains the following columns:

• Equipment Control Number
• Item Name
• Manufacturer
• Model number
• SerialNo.
• End User Org Code
• FSC Code

Bidders should review this list to understand the scope of government-furnished property or existing assets that may be part of the contract requirements. This information is crucial for assessing the resources already in place and any potential responsibilities related to managing, maintaining, or accounting for this property.

Solicitation / RFP / RFQ

This document is a solicitation (Solicitation Number: 80MSFC26R0002) for services related to the MSFC, SSC, and other NASA centers. It outlines a single-award, indefinite-delivery, indefinite-quantity (IDIQ) contract for skills augmentation support and end-item deliverables.

• Skills Augmentation Support: Provided via Task Orders (TOs), potentially using Cost-Plus-Award-Fee (CPAF) or Cost-Plus-Fixed-Fee (CPFF) contract types. This includes support for MSFC/SSC and Other Centers.

• End-Item Deliverables: Provided via Delivery Orders (DOs), potentially using Cost-Plus-Fixed-Fee (CPFF) or Firm-Fixed-Price (FFP) contract types for MSFC end-item deliverables.

• Performance Work Statement (PWS): Detailed in Attachment J-1.

• Data Requirements: As identified in the Data Requirements List (DRL) of the Data Procurement Document (DPD).

• Security: Requires access to classified information (up to Top Secret) and compliance with NASA IT security requirements.

• Other Requirements: Includes packaging and marking, inspection and acceptance, contract administration, and special contract requirements.

• Contract Type: Single-award, IDIQ.

• Period of Performance: The contract period is from 10/01/2026 through 01/31/2032, with potential for extension.

• Maximum Potential Value: The maximum potential not-to-exceed (NTE) value, including options, is $3,248,200,000.

• Contract Line Item Numbers (CLINs): Various CLINs are defined for different phases (Phase-In, Base Ordering, Optional Ordering) and types of work (Skills Augmentation, End-Item Deliverables), with different contract types (FFP, CPAF, CPFF).

• Proposal Submission Deadline: Offers are due by 2:00 PM CT on 1/15/2026.

• Evaluation Criteria: Not explicitly detailed in the provided sections, but typically includes factors outlined in Section M.

• Period for Acceptance: Offers are valid for 60 calendar days from the receipt date.

• No specific set-aside information is immediately apparent in the provided sections.

• The document includes numerous FAR and NFS clauses incorporated by reference and in full text.

• Potential organizational conflicts of interest (OCI) are noted, particularly concerning skills augmentation and access to proprietary information.

• Specific requirements for employee badging at Stennis Space Center are included.

• The document references several attachments (J-1, J-7, J-12, J-13, J-20, J-24) which contain further details.

Forms / Attachments / Pricing Sheets

This Excel file, "80MSFC26R0002 ESSCA II DRFP Attachment L-1 Excel Pricing Model.xlsx", serves as the Pricing Model (Attachment L-1) for the ESSCA II DRFP (80MSFC26R0002). Offerors are instructed to complete all areas highlighted in yellow within this workbook to ensure an accurate proposal submission.

The pricing model is structured across multiple sheets, each detailing specific cost components:

• Index: Provides an overview of the workbook's tabs and general instructions.
• Tab A (Summary of Total Cost Calculated): Summarizes the total contract cost, including phase-in, labor, subcontracting, and Other Direct Costs (ODCs). It is linked to other tabs and largely auto-populates.
• Tab B (IDIQ Rate Development): Used by offerors and subcontractors to detail the development of fully burdened labor rates. This includes mapping labor categories, applying fringe, overhead, CMO, and G&A rates, and calculating individual contractor/subcontractor costs based on assigned hours.
• Tab C (Productive Hours per WYE Conversion Table): Identifies proposed productive hours per labor category for each contract year and requires notes on calculation methodology.
• Tab D (Contract Management Overhead Rate Development): For the prime offeror to compute a Contract Management Overhead (CMO) rate.
• Tab E (Schedule of Overhead, G&A and Other Indirect Rates Calculation): Provides insight into the composition of proposed indirect rates and requires cost history.
• Tab F (Fringe Benefit Rate Calculation/Detail): Details the development of the fringe benefit rate.
• Tab G (Composite IDIQ Rate Development by Year): For the prime offeror to develop composite IDIQ rates by contract year and center.
• Tab H (Cognizant Audit Office Form): Identifies the Cognizant Audit Agency.
• Tab I (Table of WYE Distributed by Percentage): For the prime to account for the distribution of prime/subcontractors by labor category.
• Tabs B-1 through B-11 (IDIQ Rates Development by Center): Specific sheets for various NASA centers (MSFC, AFRC, ARC, GRC, GSFC, HQ, JSC, KSC, LaRC, MAF, SSC) for detailed labor rate development.
• Tab C - Prod Factor: Contains a productive hours conversion table.
• Tabs D, E, F, G, H: Further detail CMO, Indirect Rates, Fringe Benefits, Composite IDIQ Rates, and Cognizant Audit Office information.

This document is critical for bidders to accurately calculate and present their proposed costs. It outlines the required format for labor rates, indirect costs, and overall pricing structure. Offerors must pay close attention to the highlighted yellow fields and ensure all calculations are consistent across the various tabs and with other proposal sections.

Solicitation / RFP / RFQ

This is a Draft Request for Proposal (DRFP) for the Engineering Services and Science Capability Augmentation (ESSCA) II requirement. The primary goal is to provide engineering and science capability skills augmentation support and related services to NASA's Marshall Space Flight Center (MSFC), Michoud Assembly Facility (MAF), and Stennis Space Center. Support may also extend to NASA Headquarters and other NASA Centers. The contract will also include scope for MSFC end-item deliverable requirements.

• Broad spectrum of engineering and science disciplines, including research, design, development, analysis, testing, operations, and sustaining engineering.

• End-item deliverables may include software, trade studies, support equipment, prototypes, flight hardware, electronic systems, etc.

• Requires adherence to NASA IT security, safety, health, and environmental standards.

• Offerors must submit an Organizational Conflict of Interest (OCI) Plan.

• A Top Secret facility clearance is required at the time of proposal submittal.

• Full and open competition.

• NAICS Code: 541715 (Research and Development in the Physical, Engineering, and Life Sciences), Size Standard: 1,300 employees.

• Hybrid indefinite-delivery, indefinite-quantity (IDIQ) contract with potential for Cost-Plus-Award-Fee (CPAF), Cost-Plus-Fixed-Fee (CPFF), and Firm-Fixed-Price (FFP) orders.

• Contract duration: Four-month phase-in period, five-year base ordering period, with an option for a three-year additional ordering period.

• Anticipated award date: September 9, 2026.

• Anticipated phase-in start: October 1, 2026.

• Final RFP planned release: Week of November 17, 2025.

• Proposals due approximately 30-45 calendar days after Final RFP release.

• Virtual Industry Day: October 17, 2025.

• Comments and questions due by October 20, 2025.

• Proposals to be submitted via NASA's Enterprise File Sharing and Sync Box (EFSS Box).

• Full and open competition.

• NAICS Code: 541715, Size Standard: 1,300 employees.

• This is a Draft Request for Proposal (DRFP) and not a solicitation for proposals.

• Offerors are encouraged to comment on all aspects of the DRFP.

• Formatting inconsistencies may exist due to a new NASA contract writing system.