20 C.F.R. § 618.898 – Applicable State law.

(a) The applicable State law for an AAW remains the applicable State law for such worker until such worker becomes entitled to UI under the State law of another State (whether or not such worker files a UI claim in that other State).
(b) For purposes of determining the applicable State law for UI entitlement:
1. (1) A worker is deemed entitled to UI under a State law if such worker satisfies the base period employment and wage qualifying requirements of such State law;
2. (2) In the case of a combined-wage claim, UI entitlement must be determined under the law of the paying State; and
3. (3) In case of a Federal UI claim, or a joint State and Federal UI claim, UI entitlement must be determined under the law of the applicable State for such claims.