DOE/NNSA Clearance Action Tracking System (CATS) Development & Maintenance Support Services.

Amendment #10 is issued to revise DOE-L-2015
Offer Acceptance Period (OCT 2015) from: “The
offeror's proposal shall be valid through
September 8, 2026, which is 365 calendar days
after the required due date for proposals.”
To: “The offeror's proposal shall be valid
through January 6, 2027, which is 485 calendar
days after the required due date for
proposals.”
All offerors desiring to extend their proposals
are hereby requested to sign Amendment 10 and
return the signed amendment via email to
tamra.ortiz@nnsa.doe.gov and
Samantha.sartori@nnsa.doe.gov no later than
0800 August 25, 2026. By signing and returning
Amendment 10, Offerors agree to extend their
offers through January 6, 2027. Failure to
sign and return Amendment 10 will result in an
Offeror’s proposal being removed from further
consideration under this procurement.
At this time the Government is not inviting nor
accepting proposal revisions. An Offeror’s
submission of a revised proposal will result in
the Offeror’s proposal being removed from
further consideration under this procurement.
Period of Performance: 03/09/2026 to
03/08/2031