Addition/Alteration Administration

• Response deadline time changed: Responses were due 21 October 2026 at 11:00 am MT; now due 21 October 2026 at 2:00 pm CT. The date is unchanged, but the cutoff is now 2:00 pm Central, which is effectively the same moment as 2:00 pm MT in a different time zone label, so applicants should confirm the exact deadline with the contacts.
• Agency name corrected in background: The government is now described as conducting research on behalf of the "Department of the Air Force" instead of the "Department of the Space Force." Buckley SFB remains the installation named.
• Formatting and minor wording: The base name line, spacing, and the attachment file name (adding an underscore) were adjusted; the project scope, CCL of $6,622,000, acquisition approach (OTA under 10 USC 2808a, progressive design-build), and phasing requirements are unchanged.

Why it matters: applicants should update their submission calendar to the new time basis and note the revised service reference, since the sponsoring department named in the notice affects how the response is framed.

• Response deadline moved from 2:00 pm CT to 11:00 am MT on 21 October 2026. The time is the same instant in Colorado (both are Mountain/Central-adjusted equivalents), but the stated time zone and clock time changed, so applicants should confirm they are submitting by the new stated time.
• Agency naming corrected: the background now says market research is conducted for the Department of the Space Force, replacing "Department of the Air Force." This matters for who the customer is and which service-specific procedures or contacts apply.
• Facility address added: the header now lists Buckley Space Force Base, Colorado 80011 as the project location, useful for logistics, site-visit planning, and base access requirements.
• Minor wording cleanup: the filename changed, and the Phase 2 and background text was reflowed, but no requirements, scope, or restrictions were altered.

Why it matters: applicants should update their submission timing to the 11:00 am MT deadline and reflect the Space Force customer name in their capability narratives.

• Response deadline time changed: Responses are now due 21 October 2026 at 2:00 pm CT, previously 11:00 am MT. Both are the same instant in Colorado (MT and CT differ by one hour, and 11:00 am MT equals 12:00 pm CT), so this is effectively a later deadline of two hours; applicants should confirm the time zone and submit accordingly.
• Sponsoring service renamed: The market research is now stated as being conducted on behalf of the Department of the Air Force, previously the Department of the Space Force. Buckley SFB remains the installation, so applicants should note the service reference in their capability narratives and points of contact.

Other content, including the project scope, 5,800 SF addition, 695 SF renovation, $6,622,000 CCL, OT authority, and phased PDB approach, is unchanged.

• Response deadline moved from 2:00 pm CT to 11:00 am MT on 21 October 2026. The clock time is the same instant in both zones, so this is a cosmetic restatement, but applicants should confirm the deadline in whichever time zone they plan around.
• Sponsoring department renamed: the project was described as being conducted "on behalf of the Department of the Air Force" and is now "on behalf of the Department of the Space Force," reflecting the correct service for Buckley SFB.
• Facility address added: the header now lists "Buckley Space Force Base, Colorado 80011" as the project location.
• Minor wording and line-break cleanup in the background and project description sections, with no change to scope, square footage (5,800 SF addition and 695 SF renovation), CCL ($6,622,000), acquisition method (10 USC 2808a OT with Progressive Design-Build), or phasing requirements.

Why it matters: the substantive changes are the deadline restatement and the Space Force correction. Respondents should treat the deadline as unchanged in substance and re-check their submission timing, and should address capability statements to the Space Force as the sponsoring service.

• Response deadline moved from 11:00 am MT to 2:00 pm CT on 21 October 2026. The date is unchanged, and the two time zones are both UTC-6 on that date, so the effective cutoff is the same instant; the stated time now reads 2:00 pm CT (the prior 11:00 am MT stated the same moment in a different zone). Applicants should still confirm they are submitting before the cutoff.
• Sponsoring organization corrected from "Department of the Space Force" to "Department of the Air Force" in the background statement. Applicants should note the stated customer agency for this market research has changed in wording, which may matter for past-performance or agency-specific capability framing.
• Base name now written as "Buckley Space Force Base (SFB)" in the header, a minor wording alignment with the body text.
• Otherwise the project scope, 5,800 SF addition, 695 SF renovation, $6,622,000 construction cost limitation, 10 USC 2808a OTA approach, and phased progressive design-build structure are unchanged.

• Response deadline time changed: The email submission cutoff moved from 2:00 pm CT to 11:00 am MT on 21 October 2026. Both are the same instant (CT is one hour ahead of MT), so applicants should note the earlier local-time wording and submit by that moment.
• Department name corrected: Background now says the market research is on behalf of the Department of the Space Force, previously the Department of the Air Force. Applicants should frame qualifications for a Space Force customer.
• Location added: The title block now includes the ZIP code for Buckley Space Force Base (80011).
• Minor wording and punctuation edits: Filename shortened, and several sentences and spacing adjusted without changing scope, requirements, or the $6,622,000 construction cost limitation.

Why it matters: the earlier submission time and the Air Force attribution are the substantive changes. Respondents should confirm the new deadline and tailor their capability narratives to the Space Force customer.

• Response deadline moved from 11:00 am MT to 2:00 pm CT on 21 October 2026. The date is unchanged, but the cutoff time is the same instant only if the zones align; the stated deadline now reads 2:00 pm Central, which is the same moment as 1:00 pm Mountain, so responses are effectively due about two hours earlier than the old wording suggested. Applicants should confirm the intended time with the points of contact.
• Sponsoring service renamed in the background statement: the notice now says the work is on behalf of the Department of the Air Force rather than the Department of the Space Force. Buckley SFB is unchanged, but applicants should note the corrected service reference when describing the customer.
• Installation name formatting adds "(SFB)" after Buckley Space Force Base in the header; this is cosmetic.
• Antiterrorism citation corrected: the Facility-Related Control Systems reference now points to UFC 4-010-01 for force protection compliance, while the FRCS requirement still cites UFC 4-010-06. Applicants should check that their design and security approach reflects this clarified reference.

Why it matters: the earlier deadline time and the service attribution both affect submission timing and how capability statements should frame the customer. The other edits are wording or citation clarifications that do not change scope, phasing, or the $6,622,000 construction cost limitation.

• Response deadline moved from 2:00 pm CT to 11:00 am MT on 21 October 2026. The time is the same instant in Colorado (both are Mountain/Central offsets for that date), but the stated time and time zone changed, so responders should use the new listing.
• Agency description updated: the sponsoring department is now named the Department of the Space Force rather than the Department of the Air Force, which matters for applicants checking eligibility or program alignment.
• Location detail added: the project header now includes the ZIP code 80011 for Buckley Space Force Base.
• Source file renamed from "Sources_Sought_Notice_" to "Sources_Sought_Notice", a cosmetic change with no scope impact.
• Wording tightened in the background and mission sections (e.g., "24/7 mission-critical facility" text is unchanged, but paragraph breaks and phrasing were reflowed), with no new requirements, restrictions, or technical focus.

For applicants, the substantive changes are the corrected sponsoring department and the revised deadline time and zone. The technical scope, 35% concept baseline, OTA/PDB approach, CCL of $6,622,000, and phasing requirements are unchanged.

• Response deadline time changed: Previously due 21 October 2026 by 11:00 am (MT); now due 21 October 2026 by 2:00 pm (CT). The date is unchanged, but the cutoff is the same instant only if the time zones line up, so applicants should treat the earlier-to-read deadline as binding and submit well ahead of it.
• Customer organization corrected: The market research is now described as being conducted on behalf of the Department of the Air Force, previously the Department of the Space Force. Buckley SFB remains the installation, so the site is unchanged, but applicants should note the service listed in the notice.
• Installation name tweak: "Buckley Space Force Base" now reads "Buckley Space Force Base (SFB)" in the cover block, which is cosmetic.

Why it matters: The earlier response time and the change in sponsoring department should be reflected in the response timeline and in how the capability narrative is framed. The scope, $6,622,000 construction cost limitation, 5-page limit, and Progressive Design-Build under 10 U.S.C. § 2808a are unchanged.

• Response deadline moved from 2:00 pm CT to 11:00 am MT on 21 October 2026. Both are the same moment in time (Mountain Time is one hour ahead of... actually Central Time is one hour ahead of Mountain Time, so 2:00 pm CT equals 1:00 pm MT). The updated 11:00 am MT deadline is therefore one hour earlier in real time, so responses are due sooner than the prior notice indicated. Applicants should submit by 11:00 am MT.
• Agency name corrected from Department of the Air Force to Department of the Space Force as the customer on whose behalf market research is conducted. This matters for applicants because it identifies the correct service branch and likely past-performance and security references.
• Facility address added (Buckley Space Force Base, Colorado 80011), a minor clarification for site-visit and logistics planning.

No changes were made to the scope, the $6,622,000 construction cost limitation, the OTA authority, the phased design-build approach, or the 5-page narrative limit.

• Response deadline time changed: Responses were due 21 October 2026 at 11:00 am MT; now due 21 October 2026 at 2:00 pm CT. The date is unchanged, but the cutoff time is 1 hour later in clock terms, and the time zone shifted from Mountain to Central.
• Agency naming corrected: The background now says market research is conducted on behalf of the Department of the Air Force, replacing the Department of the Space Force. Applicants should note the sponsoring department in their capability statements.
• Installation name clarified: "Buckley Space Force Base" now appears with "(SFB)" in the header, a minor wording change.
• Formatting only: Spacing and line breaks were adjusted throughout the project description, scope, and acquisition methodology sections, with no change to requirements, scope (5,800 SF addition, 695 SF renovation), CCL ($6,622,000), or the OT/Progressive Design-Build approach.

Why it matters: Applicants should update their submission timing to the new 2:00 pm CT deadline, and reflect the Department of the Air Force reference in any project background or past-performance framing.

• Response deadline moved from 2:00 pm CT to 11:00 am MT on 21 October 2026. The two times are the same instant (both 1:00 pm ET / 12:00 pm CT / 11:00 am MT), so this is a time-zone restatement rather than a schedule change, but applicants should use the new stated zone when submitting.
• Sponsoring department wording changed from "Department of the Air Force" to "Department of the Space Force" as the agency on whose behalf market research is conducted. This reflects the facility's actual service owner; no scope impact.
• Project location added: the header now lists "Buckley Space Force Base, Colorado 80011" with the ZIP code.
• Solicitation attachment renamed from "Sources_Sought_Notice_.pdf" to "Sources_Sought_Notice.pdf" (filename only).
• Minor wording cleanups in the background and project sections (for example, "critically undersized" sentence and paragraph breaks), with no change to requirements, the 5,800 SF addition, the 695 SF renovation, the $6,622,000 CCL, the 50-foot standoff, or the three-phase OT/Progressive Design-Build approach.

Why it matters: the substantive item for applicants is the deadline's stated time zone, so confirm your submission goes out before 11:00 am MT on 21 October 2026. The remaining edits are administrative and do not change eligibility, scope, or the acquisition method.

• Response deadline moved from 11:00 am MT to 2:00 pm CT on 21 October 2026. The date is unchanged, but the time is now 2:00 pm Central, which is the same moment as 2:00 pm Mountain... so the effective cutoff shifts one hour later in Mountain time. Applicants should confirm the exact deadline and submit early.
• Sponsoring agency wording changed from "Department of the Space Force" to "Department of the Air Force" in the background statement. Buckley SFB is a Space Force base, so this looks like a correction; applicants should note the discrepancy when framing the customer and past-performance narrative and may seek clarification from the points of contact.
• Facility reference and wording clarified: "Buckley Space Force Base" now carries "(SFB)" after it, and the Air Force/Space Force label and minor formatting were adjusted. Substantively, the scope, the $6,622,000 CCL, the 35% concept design, the Progressive Design-Build/OTA approach, and the phased, zero-downtime requirements are unchanged.
• Security and phasing details (UFC 4-010-01 50-foot standoff, FRCS per UFC 4-010-06) are unchanged in substance.

• Response deadline moved from 2:00 pm CT to 11:00 am MT on 21 October 2026. The time is the same instant (both are Central/Mountain offset by one hour), so the effective cutoff is unchanged, but applicants should note the new time-zone labeling.
• Requesting agency wording changed: the Department of the Air Force is now the Department of the Space Force as the agency on whose behalf USACE is conducting market research.
• Facility address added to the title block: Buckley Space Force Base, Colorado 80011.
• Minor wording and formatting edits in the background and methodology sections (for example, "Phase 1" through "Phase 3" text and the Design Execution bullets) that do not alter requirements.

Why it matters: the substantive requirements, scope (about 5,800 SF addition and 695 SF renovation), the $6,622,000 CCL, the 10 USC 2808a OT approach, and the phased, zero-downtime constraints are unchanged. Applicants should update their response to reference the Space Force as the customer and confirm the 11:00 am MT deadline in their calendars.

• Response deadline moved from 11:00 am MT to 2:00 pm CT on 21 October 2026. The date is unchanged, but the time is now stated in Central Time, which is the same clock time as 10:00 am MT. Applicants should note the earlier effective cutoff if they were planning around the original time.
• Military department named changed: the background statement now says USACE is acting for the "Department of the Air Force" instead of the "Department of the Space Force." Buckley SFB is a Space Force installation, so applicants should confirm which service is the sponsoring department before referencing it in their capability statements.
• Base name formatting: "Buckley Space Force Base" now appears with "(SFB)" in the header; this is cosmetic.
• Otherwise the project scope, the $6,622,000 construction cost limitation, the OT authority under 10 USC 2808a, the 5-page limit, and the phased design-build approach are unchanged.

• Response deadline moved from 2:00 pm CT to 11:00 am MT on 21 October 2026. The clock time is the same instant in both zones (both CT and MT are one hour apart, so 2:00 pm CT equals 1:00 pm MT; the new 11:00 am MT is an earlier cutoff by two hours), so applicants should plan to submit by 11:00 am MT.
• Department reference changed from "Department of the Air Force" to "Department of the Space Force" as the agency on whose behalf USACE is conducting market research.
• Facility address added: the project location now reads "Buckley Space Force Base, Colorado 80011."
• Minor wording updates to the problem statement and document title (e.g., "Sources Sought Response Form" with the file name changed from "Sources_Sought_Notice.pdf" to "_Sources_Sought_Notice.pdf").

Why it matters: The earlier cutoff time means responses must go in roughly two hours sooner than the prior 2:00 pm CT reading suggested, and applicants should confirm the MT time in their calendars. The agency correction and address addition do not change scope, requirements, the $6,622,000 construction cost limitation, or the 5-page narrative limit.

• Response deadline moved from 11:00 am MT to 2:00 pm CT on 21 October 2026. The date is unchanged, but the time is written in a different zone; the two are the same instant (both 11:00 am MT and 11:00 am CT differ, so the 2:00 pm CT time is actually later than the old deadline in real time).
• Agency named for the background statement changed from "Department of the Space Force" to "Department of the Air Force" for the work on behalf of which market research is being conducted. This matters for applicants because it affects which service sponsor and related coordination contacts they may expect.
• Facility wording and formatting refined: the installation is now written as "Buckley Space Force Base (SFB)" in the header, and the fire station and project scope paragraphs were reorganized with added spacing, but the technical requirements (5,800 SF addition, 695 SF renovation, $6,622,000 CCL, 35% concept design, PDB/OTA approach, 50-foot standoff) are unchanged.

Applicants should note the earlier time-zone and deadline wording to avoid missing the response window, and confirm the sponsoring service with the points of contact.

• Response deadline moved from 2:00 pm CT to 11:00 am MT on 21 October 2026. Both are the same moment in time (Central is one hour ahead of Mountain), so the effective cutoff is unchanged, but applicants should note the new time zone and clock time when submitting.
• Sponsoring department wording changed from "Department of the Air Force" to "Department of the Space Force" for the Buckley SFB project. This reflects which service owns the base and facility.
• Facility address added ("Buckley Space Force Base, Colorado 80011") to the header.
• Minor wording edits in the problem statement and project background (paragraph breaks and phrasing), with no change to requirements.

Why it matters: the substantive scope, the 5,800 SF addition, 695 SF renovation, the $6,622,000 construction cost limitation, the 35% concept design, the OTA/10 USC 2808a approach, and the 50-foot antiterrorism standoff requirements are unchanged. The main action item is to confirm your submission goes out before 11:00 am MT on the response date.

• Response deadline moved from 11:00 am MT to 2:00 pm CT on 21 October 2026. The date is unchanged, but the time now reads as 2:00 pm Central, which is the same instant as 2:00 pm Mountain (Buckley SFB is in Mountain Time), so applicants should confirm whether the effective cutoff actually moved.
• Sponsoring service changed from "Department of the Space Force" to "Department of the Air Force" in the problem statement. Applicants should note the stated customer service in their capability narratives.
• Minor wording edits: "Buckley Space Force Base (SFB)" now appears in the header, and the RFQ reference and paragraph spacing were adjusted. These do not change requirements.
• Why it matters: The deadline wording and the service attribution are the only substantive items. Responses should be sent on time under the 2:00 pm CT reading, and proposals should reference the correct sponsoring department.

• Response deadline moved from 2:00 pm CT to 11:00 am MT on 21 October 2026. The two times are the same instant (both are 1:00 pm ET / 11:00 am MT), so the effective deadline is unchanged, but the stated time zone and clock time differ and applicants should use the new wording.
• Sponsoring department renamed: the market research is now described as being conducted on behalf of the "Department of the Space Force" rather than the "Department of the Air Force." Applicants should note the Space Force as the customer agency.
• Location detail added: the header now includes the ZIP code "80011" for Buckley Space Force Base, Colorado. This is administrative only.
• Minor wording cleanup: the title "Notice Type" and some phrasing were tightened (e.g., "Sources Sought Notice.pdf" attachment name, and "Phase" and "Design Status" wording), with no change to requirements, scope, square footage (5,800 SF addition, 695 SF renovation), CCL ($6,622,000), acquisition approach (PDB under 10 U.S.C. § 2808a OTA), or antiterrorism standards.

Why it matters: the deadline is functionally the same, but respondents should confirm submission timing against Mountain Time to avoid errors.