2025 Main Bus Program

2026 FALL OPEN SEASON Update July 22, 2026 In support of the Main Bus Program, GSA is providing the following updates for the 2026 Fall Open Season: The following attachment is hereby incorporated into this posting: MainBus_OpenSeasonConferenceFY26Fall_2026-07-22.pdf Vendors and potential offerors wishing to view the conference recording must first obtain a GSA Affiliated Customer Account (GACA) to gain access. Instructions for obtaining a GACA are attached to this notice. Once approved, offerors may access the recording at the following link: https://drive.google.com/file/d/1EFgMXYbP8wJ-YLYkDUjkEVuvG-sxBEpW/view?usp=sharing (If the link does not open directly, copy and paste the address into your web browser). July 14, 2026 In support of the 2025 Main Bus Program, GSA is announcing the FY26 Fall Open Season period for existing contractors to submit New Model Year (NMY) updates to awarded line items and for prospective offerors to provide proposals. Important Dates: Comment Collector opened in GSAFleet.gov: June 2, 2026 Bid Intention Period opened in GSAFleet.gov: June 2, 2026 Comment Collector closes in GSAFleet.gov: June 30, 2026 Bid Intention Period closes in GSAFleet.gov: June 30, 2026 Fall Open Season Industry Day: July 22, 2026 Bid Period opening in GSAFleet.gov: August 3, 2026 Bid Period closing in GSAFleet.gov: August 21, 2026, at 12:00 PM Eastern Time Supplemental Documents due (if applicable): August 21, 2026, at 12:00 PM Eastern Time GSA will hold a virtual Industry Day as stated above to discuss the Open Season process. All interested parties should attend. The Google Meet joining information is as follows: 2026 Fall Open Season Industry Day Wednesday, July 22 · 10:00 – 11:00 AM Eastern Time Google Meet joining information: Video call link: https://meet.google.com/ukp-fpqh-ojx Or dial: ‪(US) +1 442-666-1370 PIN: ‪611 355 047# More phone numbers: https://tel.meet/ukp-fpqh-ojx?pin=9965853018233 The Government intends to make awards based on initial offers. Offerors are therefore encouraged to submit their best pricing and terms with their initial proposal. Should you have any questions regarding the Fall Open Season, please contact the Main Bus Program Contracting Team. New offerors are strongly encouraged to set up a one-on-one session with the Main Bus Program Contracting Team to discuss the solicitation requirements. --- 2026 SPRING OPEN SEASON Update March 5, 2026 In support of the Main Bus Program, GSA is providing the following updates for the 2026 Spring Open Season: 1) Important Dates: Bid Period Open: March 5, 2026 Bid Period Close: March 20, 2026 at 12:00 PM Eastern Time Supplemental Documents Due (if applicable): March 20, 2026 at 12:00 PM Eastern Time 2) The following attachments are hereby incorporated: MainBus_OpenSeasonConferenceFY26Spring_2026-03-04.pdf Update February 9, 2026 In support of the Main Bus Program, GSA is announcing the FY26 Spring Open Season for existing contractors to submit new model year (NMY) updates to awarded line items and for current contractors or prospective offerors to propose new models for consideration under the program. GSA will host a virtual Industry Day to provide an overview of the Spring Open Season process. Important Dates: Spring Open Season Industry Day: March 4, 2026 1:00 PM Eastern Time Bid Period Open: March 5, 2026 Bid Period Close: March 20, 2026 at 12:00 PM Eastern Time Supplemental Documents Due (if applicable): March 31, 2026 at 12:00 PM Eastern Time GSA will hold a virtual Industry Day as stated above to discuss the Open Season process. All interested parties should attend. The Google Meet joining information is as follows: 2026 Spring Main Bus Open Season Conference Wednesday, March 4 · 1:00 – 2:00 PM Eastern Time America/New York Google Meet joining info: Video call link: https://meet.google.com/ezb-tkii-ymi Or dial: ‪(US) +1 402-862-6277‬ PIN: ‪866 095 755‬# More phone numbers: https://tel.meet/ezb-tkii-ymi?pin=2377596655151 --- 2025 FALL OPEN SEASON Update September 18, 2025 In support of the Main Bus Program, GSA is providing the following update for the FY25 Fall Open Season period. 1) The following attachments are hereby incorporated: JointProgram_OpenSeasonConferenceFY25Fall_2025-09-17 2) Important Dates are as follows: Comment Collector Opening in GSAFleet.gov: June 2, 2025 Bid Intention Period Opening in GSAFleet.gov: June 2, 2025 Comment Collector Closing in GSAFleet.gov: June 30, 2025 Bid Intention Period Closing in GSAFleet.gov: June 30, 2025 Fall Open Season Industry Day: September 17, 2025 at 9:00 AM Eastern Time Bid Opening in GSAFleet.gov: September 22, 2025 Bid Closing in GSAFleet.gov: October 29, 2025 at 12:00 PM Eastern Time Supplemental Documents Due (if applicable): October 29, 2025 at 12:00 PM Eastern Time Should vendors or potential offerors wish to view the recording of the conference, please request a GSA Affiliated Customer Account (GACA) to gain access. Instructions for obtaining a GACA are attached to this notice. Once approved, offerors may access the recording at the following link: https://drive.google.com/file/d/11GqYibw76yhxqYfeaCyeiB5f_3dMxW8a/view?usp=drive_link (cut and paste the address into your browser). Please note that both the Bid Intention Period and the Comment Collector periods are now closed. No new makes and models will be accepted. Update July 23, 2025 In support of the Main Bus Program, GSA is providing the following update for the FY25 Fall Open Season period. Please note that both the Bid Intention Period and the Comment Collector periods are now closed. No new new makes and models will be accepted. Important Dates: Comment Collector Opening in GSAFleet.gov: June 2, 2025 Bid Intention Period Opening in GSAFleet.gov: June 2, 2025 Comment Coll…