US SB872

Requires "other transaction agreements" (OTAs) to be reported to USAspending.gov within 3 years, with automatic data transmission and a centralized view of OTA spending data

Mandates annual reports on unreported federal spending, including total amounts not posted and reasons for non-disclosure (national security, legislative/judicial branch awards, or subawards below primary level)

Requires inspectors general of major federal agencies to report on data quality and completeness within 1 year of enactment, then every 2 years for 10 years

Establishes implementation timeline: interim report on OTAs within 1 year if full compliance not achieved, implementation plan to Congress within 2 years, full integration by year 3

Directs GAO to recommend updates to Federal Acquisition Regulation clause 52.204-10 within 1 year to incorporate transparency requirements