As part of MAS Refresh 31 and the expansion of Transactional Data Reporting (TDR), GSA has clarified the effective date for TDR participation under Mass Modification A909. TDR requirements will take effect on the first day of the sales reporting quarter following acceptance, which is July 1, 2026 for contractors who accept the modification on or before June 30.
Importantly, contractors do not transition to TDR immediately upon acceptance. Until the July 1 effective date, contractors must continue to comply with Commercial Sales Practices (CSP) requirements and all non-TDR obligations, including pricing compliance under existing contract terms.
GSA also confirmed that a grace period for TDR data quality submissions will begin on July 1, aligning with the start of the first reporting period. Additional corrective actions are expected to ensure all contractors have a consistent TDR effective date.
Read the full GSA notice here.