WASHINGTON — The Trump administration would slash programs aimed at slowing climate change and improving water safety and air quality, while eliminating thousands of jobs, according to a draft of the Environmental Protection Agency budget proposal obtained by The Associated Press.

Under the tentative plan from the Office of Management and Budget, the agency’s funding would be reduced by roughly 25 percent and about 3,000 jobs would be cut, about 19 percent of the agency’s staff.

President Donald Trump has said he plans to pay for billions of dollars more for the military by cutting spending on domestic agencies and departments. Trump plans to submit his budget to Congress the week of March 13.

A spokeswoman for the EPA declined to comment, but a top official said in an internal memo that EPA leaders “will do everything in our power to protect our ability to support the mission of the agency in protecting human health and the environment.” A copy of the memo from Acting Assistant Administrator Donna Vizian was obtained by the AP.

Vizian said she could not verify news media accounts, but said any proposed cuts were just the start of a lengthy budget process. A final plan is subject to congressional approval, which likely is months away at the earliest.

The White House also declined to comment.

The EPA is now under the leadership of Scott Pruitt, a former state attorney general for Oklahoma, who has questioned the scientific consensus that human activities are contributing to global warming and joined lawsuits against the agency’s emission curbs.

The draft proposal would cut the EPA’s annual budget from about $8.2 billion to $6.1 billion. Proposed cuts include reducing the climate protection budget by nearly 70 percent to $29 million, the Great Lakes Restoration Initiative by 97 percent to $10 million and environmental justice programs by 79 percent to $1.5 million.

Former EPA Administrator Gina McCarthy called the proposed budget “a fantasy” that ignores the EPA’s mission to protect public health.

Environmental groups said the cuts would threaten thousands of jobs.