USCIS analyzes sustainment differently depending on the filer's regulatory cohort.
Pre-RIA filers (those who filed I-526 before March 15, 2022, or whose petitions are governed by pre-RIA standards under transition rules) are governed by 8 C.F.R. § 216.6(a)(4)(iii). The investor's capital must remain at risk throughout the two-year period of conditional permanent residence. The clock begins when conditional residence begins and runs until the I-829 is filed (or until the conditional residence is otherwise terminated). USCIS continues to apply this rule, and pre-RIA filers face the longer-tail sustainment posture: backlogged Indian and Chinese investors may not begin conditional residence until many years after their initial deployment, and the at-risk capital must be maintained throughout that extended period through redeployment.
Post-RIA filers are governed by INA § 203(b)(5)(A)(i) as amended, requiring that the investment "be expected to remain invested for not less than 2 years." USCIS interprets the start date in a December 2023 web Q&A as the date of full deployment to the NCE and availability to the JCE. Under that interpretation, the two-year clock can theoretically expire before conditional residence begins, particularly for investors from backlogged countries or in retrogressed set-aside categories. USCIS has not formally promulgated this interpretation as a regulation, and the IIUSA v. DHS litigation is pending in D.D.C.
The practical analytical questions, in our experience, fall into several categories. The first is the start date documentation. For post-RIA filers operating under USCIS's current web-guidance interpretation, practitioners typically document the date of full deployment to the NCE and availability to the JCE explicitly: bank records showing the capital arriving at the NCE, NCE-to-JCE flow documentation, and where applicable a regional-center confirmation of full deployment. The start-date evidence becomes important if the petition is later challenged on sustainment grounds.
The second is continuity of the at-risk posture through the period. Sustainment incorporates the at-risk requirement: capital that is structured at-risk at the start but loses its at-risk character mid-period (because, e.g., a JCE loan matures and the funds return to the NCE without redeployment) fails sustainment. We address at-risk and redeployment in detail on separate topic pages.
The third is the interaction with conditional residence. For pre-RIA filers, conditional residence and sustainment are intertwined; for post-RIA filers, they may be decoupled. Post-RIA filers whose sustainment period would have expired before conditional residence begins face a documentary question of how to demonstrate, at I-829, that sustainment was satisfied during a period that may pre-date the conditional-residence period. Practitioners typically retain bank records, NCE financials, and regional-center confirmations from the deployment date forward, with the I-829 record in mind.
The fourth is the climate. The post-RIA interpretation is in litigation and may change. The CISNA / EDLO directive, reinstituted in June 2025, instructs adjudicators to deny in close cases. 8 C.F.R. § 103.2(b)(1), the "approvable when filed" standard, is being applied to sustainment-period defects rather than left to RFE-curing. AILA practitioners flag sustainment as one of several areas where adjudication outcomes have shifted without formal regulatory change. How any particular sustainment posture is analyzed is decided case-by-case by the adjudicating officer.