TN 6 (04-99)
SI 01310.120 Deeming Concept - Date of Admission/Entry
Regulations 20 CFR 416.1160(d)
In sponsor-to-alien deeming, the date of admission to or date of entry into the U.S. is the date established by the Immigration and Naturalization Service as the date the alien was admitted for permanent residence.
Policy on admission for permanent residence, SI 01320.900.