WASHINGTON - Some critics in Congress say Iran would be getting more than it deserves from last year's nuclear accord, if the administration eases financial restrictions that prohibit U.S. dollars from being used in transactions with that country.

No final decision has been made, but officials say it's an idea that's being considered.

Several restrictions would apply, but the change could prove significant for Iran's economy, battered by sanctions.

Republican and some Democratic lawmakers say the administration promised to maintain a strict ban on dollars along with other non-nuclear penalties on Iran after last July's seven-nation nuclear agreement.

House Speaker Paul Ryan says Iran is continuing to "undermine the spirit of its nuclear agreement" with ballistic missile tests -- while the Obama administration "is going out of its way to help Tehran reopen for business."