Environmentalists criticize proposal, saying it will hamper efforts to slow climate change.

President Trump proposed a major overhaul of federal environmental permitting, responding to business complaints of bureaucratic delays to infrastructure projects such as roads and energy pipelines. “We want to build new roads, bridges and highways bigger and faster,” Mr. Trump said from the White House, adding that the proposal would help create new jobs. But environmentalists assailed the changes to rules tied to the National Environmental Policy Act, or NEPA, saying they would weaken standards at a time when climate change is making federal review even more critical.

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