The General Services Administration is always making changes to solicitation, I am sure you receive those emails asking you to accept the changes in a mass modification. The newest change requires additional documentation for modifications that include adding a new Special Item Number (SIN).
The GSA is now requiring contractors to submit their original project experience, corporate experience, Open Ratings Report and quality control narrative in order to add a Special Item Number. For those contractors who have kept all of their initial GSA offer documents this new requirement is a breeze. However, for those that did not this change is going to be very tedious.
We do recommend that if you do not have these documents on file to reach out to your contracting officer. Although, the GSA does not have to provide the documents since it is the responsibility of the contractor to keep them on file. If your contracting officer is unwilling to provide you with the documents you will have to recreate them.
For new contractors this requirement will keep things a bit more tidy and organized since the emod system will automatically populate the documents. But for contractors that have been on Schedule for years this could be a bit of a mess.
As always you can always call the team at GCS for questions!