HQ085020R0004 Amendment 0004 (July 30, 2020) :

a) Incorporates FINAL RFP Questions and Answers (Q&As) dated July 30, 2020.  As of this amendment, no additional Q&As will be addressed for this solicitation. 

b) Revises Attachment 1- Performance Work Statement to rescind CDRLs requirements on pages 17 and 19.

All other terms and conditions of RFP HQ085020R0004 remain unchanged and in effect.

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HQ085020R0004 Amendment 0003 (July 24, 2020) :

a) Incorporates RFP Questions and Answers (Q&As) dated July 24, 2020.

b) Revises Attachment 2 - Proposal Instructions (page 6 of 9), to include Past Performance Contract number.

All other terms and conditions of RFP HQ085020R0004 remain unchanged and in effect.

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HQ085020R0004 Amendment 0002 (July 21, 2020) :

a) Incorporates RFP Questions and Answers (Q&As) dated July 21, 2020.

b) Revises Attachment 2 - Proposal Instructions (page 7 of 9), Volume V page limit from 4 to 6.

All other terms and conditions of RFP HQ085020R0004 remain unchanged and in effect.

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HQ085020R0004 Amendment 0001 (July 15, 2020) :

a) Revises Attachment 2 - Proposal Instructions, electronic submission deadline (page 8 of 9). 

b) Revises Attachment 5 - DD254 Block 2C.

All other terms and conditions of RFP HQ085020R0004 remain unchanged and in effect.

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The role of SDA's Mission Systems Engineering and Integration (MSEI) contractor will be to provide the infrastructure and effort required, under SDA's Tranche 0 Program Office direction, to ensure that:

1. The Tranche 0 Tracking, Transport, and Ground Segments operate in unison to support Warfighter mission scenarios and experiments;
2. The Ground Segment Elements function as an integrated entity providing telemetry, tracking and commanding (TT&C), mission data uplink/downlink, mission planning and payload tasking, constellation operations, and network management in support of Tranche 0 on-orbit demonstrations;
3. System, cross-Segment, and external dependencies and interfaces are understood, documented, and managed;
4. Systems engineering support is provided to Tranche 0 system-level and segment-level systems engineering activities so that they have support beyond what is provided by the space vehicle (SV) and ground contracts;
5. Gaps in support for launch operations, mission operations, security, information technology (IT), and other areas have a means for closure;
6. Tranche 0 Ground and Mission systems are integrated under a single lead organization, the MSEI Contractor.

Please see the attachments for details.