Generally, a size protest must be filed within five business days of when the protester receives notice of the identity of the awardee. But there are some nuances to this rule, such as whether a corrective action will extend the deadline and whether the clock starts running upon notice of the prospective awardee or the actual contract award date (Hint: notice of awardee).
Source: GSA Schedule BPA Award Does not Allow for Size Protest | SmallGovCon – Government Contracts Law Blog
SBA Updates All Small Mentor-Protege Template with Affiliation Questions
With little fanfare, the SBA has updated the template for agreements under the All Small Mentor-Protégé