War Production Board (WPB)

The War Production Board (WPB) was the federal agency created in 1942 to convert American factories from consumer goods to war materiel, allocate scarce raw materials like steel and rubber, and prioritize military contracts, making the U.S. the 'arsenal of democracy' during World War II.

Verified for the 2027 AP US History examLast updated June 2026

What is the War Production Board (WPB)?

The War Production Board was the federal agency Franklin Roosevelt created in January 1942, right after Pearl Harbor, to run the industrial side of the war. Its job was conversion. Car plants stopped making Fords and started making tanks and bombers. Typewriter factories made rifles. The WPB decided which factories got scarce raw materials (steel, rubber, aluminum, copper) and which contracts got filled first, and it halted production of nonessential consumer goods entirely. New cars basically disappeared from 1942 to 1945.

For APUSH, the WPB is your go-to example of mass mobilization on the home front. It's the mechanism behind the CED's essential knowledge that mobilization helped end the Great Depression and that America's industrial base won the war by equipping millions of U.S. troops and the Allies. Factories running around the clock meant near-zero unemployment, which pulled women and minorities into industrial jobs (think Rosie the Riveter). One agency, but it connects the economic, social, and military stories of WWII.

Why the War Production Board (WPB) matters in APUSH

The WPB lives in Topic 7.12 (World War II: Mobilization) in Unit 7 and directly supports learning objective APUSH 7.12.A, which asks you to explain how and why U.S. participation in WWII transformed American society. The WPB is the concrete answer to the 'how.' Total industrial mobilization ended the Depression that fifteen years of hard times and the New Deal couldn't fully fix, opened factory jobs to women and Black workers, and built the production capacity that out-supplied the Axis. It also hits the Work, Exchange, and Technology theme, and it's a perfect data point for any argument about how war expands federal power over the economy, a thread you can trace from WWI's War Industries Board through the New Deal to WWII.

How the War Production Board (WPB) connects across the course

Office of Price Administration (Unit 7)

The WPB and OPA were two halves of the same home-front machine. The WPB controlled what factories produced, while the OPA controlled what civilians paid and consumed through price ceilings and rationing. WPB shrank the supply of consumer goods, so the OPA had to stop inflation and hoarding.

Lend-Lease Act (Unit 7)

Lend-Lease (1941) committed the U.S. to supplying the Allies before America even entered the war. The WPB is what made that promise physically possible, ramping up factories to arm Britain, the USSR, and U.S. troops all at once. Together they show America winning the war as much with production as with combat.

A. Philip Randolph (Unit 7)

All those WPB-driven defense jobs raised a question the CED flags directly. Who gets hired? Randolph's threatened march on Washington pushed FDR to issue Executive Order 8802 banning discrimination in defense industries. Industrial mobilization created the leverage that fueled early civil rights activism.

The New Deal (Unit 7)

Here's a classic continuity-and-change argument. New Deal programs eased the Depression but never ended it; WPB-style wartime spending and full factory employment did. Both, though, show the same long-term trend of the federal government taking a bigger role in managing the economy.

Is the War Production Board (WPB) on the APUSH exam?

No released FRQ has used 'War Production Board' verbatim, but it's prime supporting evidence for home-front mobilization questions, which show up constantly. On MCQs, expect stems built around a wartime poster, production statistics, or an excerpt about factory conversion, asking you to identify causes (total war demands) or effects (end of the Depression, new opportunities for women and minorities). On SAQs and LEQs about how WWII transformed American society (straight from APUSH 7.12.A), naming the WPB and explaining what it actually did beats vaguely saying 'the economy mobilized.' It also works beautifully in a continuity essay on expanding federal power, paired with WWI's War Industries Board or New Deal agencies.

The War Production Board (WPB) vs Office of Price Administration (OPA)

Both were WWII home-front agencies, so they blur together fast. Keep them straight by who they targeted. The WPB managed producers, telling factories what to make and rationing raw materials like steel and rubber among manufacturers. The OPA managed consumers, setting price ceilings and rationing goods like gas, sugar, and meat to households. WPB = supply side and war output; OPA = demand side and inflation control.

Key things to remember about the War Production Board (WPB)

  • The WPB was created in January 1942 to convert American industry from consumer goods to war production and to allocate scarce raw materials like steel, rubber, and aluminum.

  • WPB-driven mobilization helped end the Great Depression by creating massive industrial demand and near-full employment, something the New Deal alone never achieved.

  • Wartime factory jobs opened by mobilization gave women and minorities new economic opportunities, which the CED ties directly to learning objective APUSH 7.12.A.

  • The WPB controlled production while the OPA controlled prices and consumer rationing; don't swap them on the exam.

  • America's WPB-coordinated industrial output equipped both U.S. troops and the Allies, making production capacity a decisive factor in winning the war.

  • The WPB is strong evidence for the long-term pattern of war expanding federal control over the economy, from the WWI War Industries Board through WWII.

Frequently asked questions about the War Production Board (WPB)

What did the War Production Board do in WWII?

Created in January 1942, the WPB converted peacetime factories to military production, allocated scarce materials like steel and rubber, prioritized military contracts, and halted production of nonessential consumer goods (no new civilian cars were made from 1942 to 1945).

Did the War Production Board end the Great Depression?

Essentially, yes, in combination with overall wartime spending. The mass mobilization the WPB coordinated created near-full employment and massive industrial demand, which is exactly what the APUSH CED means when it says mobilization helped end the Great Depression.

What's the difference between the War Production Board and the Office of Price Administration?

The WPB managed the supply side, directing factories and raw materials toward war output. The OPA managed the consumer side, setting price ceilings and rationing goods like gasoline and sugar to fight inflation. One controlled production, the other controlled prices.

Is the War Production Board the same as the War Industries Board?

No. The War Industries Board did a similar job during World War I under Bernard Baruch, while the WPB was the WWII version created in 1942. The two make a great continuity pairing for essays about federal economic power during wartime.

Is the War Production Board on the AP US History exam?

It falls under Topic 7.12 (World War II) and supports learning objective APUSH 7.12.A on how WWII transformed American society. You won't need to recite its bureaucratic details, but it's high-value evidence for home-front mobilization SAQs, LEQs, and DBQs.