U.S. President Barack Obama says he wants to resume full scientific reviews of projects that might harm endangered wildlife and plants.

In a visit to the Interior Department on Tuesday, Obama said he has signed a presidential memorandum to restore the scientific process in endangered-species decisions. Obama said the process was undermined by a last-minute regulation by the Bush administration.

Obama's memo puts on hold that regulation until the Interior and Commerce departments complete a review.

The Bush-era regulation made optional the consultations federal scientists have performed for 35 years on projects. Their input helped to determine if a project harmed endangered species.