ARTICLE 4. Interstate and Federal Cooperation [451. - 456.]

Cal. Unemployment Insurance Code - UIC 4.

in effect

Cal. Unemployment Insurance Code - UIC § 451. Section 451.

The administration of this division and of other state and federal unemployment compensation and public employment service laws will be promoted by cooperation between this State and such other states and the appropriate federal agencies in exchanging services, and making available facilities and information. The director may make investigations, secure and transmit information, make available services and facilities and exercise the other powers provided with respect to the administration of this division which he finds necessary or appropriate to facilitate the administration of any state or federal unemployment compensation or public employment service law, and may accept and utilize information, services and facilities made available to this State by an agency charged with the administration of any such other state or federal law.

Cal. Unemployment Insurance Code - UIC § 452. Section 452.

To the extent permissible under the laws and Constitution of the United States, the director may enter into or cooperate in arrangements whereby facilities and services provided under the unemployment compensation law of any foreign government, may be utilized for the taking of claims and the payment of benefits under the Unemployment Insurance Law of this State or a similar law of such government.

Cal. Unemployment Insurance Code - UIC § 453. Section 453.

To encourage cooperation between this state and other states in the enforcement of the unemployment insurance law of each state and to further coordinate the nationwide system of unemployment insurance in the United States and its territories: (a) The courts of this state shall recognize and enforce liabilities for unemployment contributions, penalties, interest, and benefit overpayments imposed by other states which extend a like comity to this state. (b) The Attorney General may commence action in any other jurisdiction by and in the name of the department to collect unemployment contributions, penalties, interest, and benefit overpayments legally due this state. The officials of other states which extend a like comity to this state may sue for the collection of such contributions, penalties, interest, and benefit overpayments in the courts of this state. A certificate by the Secretary of State under the Great Seal of the state that the officers of the department designated by the director have authority to collect the contributions, penalties, interest, and benefit overpayments is conclusive evidence of such authority. (c) The Attorney General may commence action in this state as agent for and on behalf of any other state to enforce judgments and liabilities for unemployment insurance contributions, penalties, interest and benefit overpayments due such state which extends a like comity to this state. The requesting state shall pay the court costs.

Cal. Unemployment Insurance Code - UIC § 454. Section 454.

The director may enter into reciprocal arrangements with authorized agencies of other states or of the Federal Government, or both, whereby: (a) Services customarily performed in more than one state by an individual for a single employer shall be deemed to be services performed entirely within any one of the states (i) in which any part of the individual’s service is performed, or (ii) in which the individual has his residence, or (iii) in which the employer maintains a place of business, if there is in effect as to such services an election by the employing unit with the acquiescence of the individual, approved by the agency charged with the administration of such state’s unemployment compensation law pursuant to which all the services performed by such individual for such employer are deemed to be performed entirely within such state. (b) Services on vessels engaged in interstate commerce wherever performed shall be deemed performed within this State or any other state on the basis of the location of the operating office of the employer from which the operations of the vessel are ordinarily and regularly supervised, managed, directed, and controlled.

Cal. Unemployment Insurance Code - UIC § 455. Section 455.

The director may enter into reciprocal arrangements with authorized agencies of other states or of the Federal Government, or both, whereby: (a) Potential rights to benefits accumulated under the unemployment compensation laws of one or more states or of the Federal Government, or both, may constitute the basis for the payment of benefits through a single appropriate agency under terms which the director finds will be fair and reasonable to all affected interests and which will not result in any substantial loss to the fund. (b) Wages or services in employment subject to an unemployment compensation law of another state or of the Federal Government shall be deemed to be wages in employment for employers for the purpose of determining an individual’s rights to unemployment compensation benefits under this part, and wages in employment for employers as defined in this part shall be deemed to be wages or services on the basis of which unemployment compensation under the law of another state or of the Federal Government is payable, but no such arrangement shall be entered into unless it contains provisions for reimbursements to the Unemployment Fund for such of the unemployment compensation benefits paid under this part upon the basis of such wages or services, and provisions for reimbursements from the Unemployment Fund for such of the compensation paid under such other law upon the basis of wages for employment as defined in this part as the director finds will be fair and reasonable to all affected interests. Reimbursements paid from the Unemployment Fund pursuant to this subdivision shall be deemed to be unemployment compensation benefits for the purposes of this part. The director may make to other state and federal agencies and receive from such other state or federal agencies reimbursements from or to the fund, in accordance with arrangements entered into pursuant to this subdivision.

Cal. Unemployment Insurance Code - UIC § 455.5. Section 455.5.

This state shall participate in any arrangements for the payment of compensation on the basis of combining an individual’s wages and employment covered under this division with his wages and employment covered under the unemployment compensation law of other states which are approved by the Secretary of Labor in consultation with the state unemployment compensation agencies as reasonably calculated to assure the prompt and full payment of compensation in such situations. Any such arrangement shall include provisions for both of the following: (a) Applying the base period of a single state law to a claim involving the combining of an individual’s wages and employment covered under two or more state laws. (b) Avoiding duplicate use of wages and employment by reason of such combining.

Cal. Unemployment Insurance Code - UIC § 455.7. Section 455.7.

Notwithstanding any other provision of this division, benefits shall not be denied or reduced to an individual solely because he files a claim in another state, or a contiguous country with which the United States has an agreement with respect to unemployment compensation, or because he resides in another state or such a contiguous country at the time he files a claim for unemployment compensation.

Cal. Unemployment Insurance Code - UIC § 456. Section 456.

The director may enter into reciprocal arrangements with authorized agencies of other states or of the Federal Government, or both, whereby employer contributions due under this part with respect to wages for employment shall be deemed to have been paid to the Unemployment Fund of this State as of the date payment of such contributions was made under another state or federal unemployment compensation law. No arrangement shall be entered into pursuant to this section unless it contains provisions for such reimbursement to the fund of such contributions and the actual earnings thereon as the director finds will be fair and reasonable to all affected interests. The director may collect contributions in like manner for such agencies of other states and the Federal Government administering unemployment compensation laws and remit such contributions to such agencies under appropriate reciprocal arrangements.

Source: CA Legislative Counsel Bulk DataURL: https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zipFetched: 6/27/2026