The US does not plan to join the EU plan for Russian assets

U.S. doesn't plan to join EU plan to use Russian assets to help Ukraine - Bloomberg

Washington's cautious position

The United States told its European allies that do not plan to join the EU plan yet, which involves the use of frozen Russian assets to finance assistance to Ukraine. This is reported by the agency Bloomberg citing several sources familiar with the negotiations.

Reasons for the decision

According to one of the agency's interlocutors, Washington explained its caution by risks to the financial stability of global markets.
Another source noted that The US has not yet made any specific commitments to participate in the initiative, but continue discussions with partners.

What the European plan envisages

The EU proposes to use the proceeds of frozen Russian assets - primarily interest income - to support Ukraine's defence and reconstruction.
Most of the funds, about 200 billion euros, is stored in European financial institutions, in particular in Euroclear in Belgium.

Context.

The United States has previously supported the idea of confiscating Russian assets, but has advocated Thorough legal elaboration of the mechanism, to avoid setting a precedent that could affect other countries or investors.
The White House is currently focused on domestic aid package for Ukraine, which is currently under consideration by Congress.