Yes, you are correct, up to 10,000 psi.
There are two types of hydrogen powered cars, internal combustion engine and fuel cell. The internal combustion engine version is similar to the CNG and propane powered engines, except for the pressure tank, and it also emits carbon dioxide along with water vapor, due to combustion. The fuel cell powered cars converts the hydrogen into electricity, powering electric motors. The conversion process emits water vapor. Most hydrogen production facilities currently extract the hydrogen from natural gas, which means that carbon gas is a by-product. Refueling times are 5 to 10 minutes, at a gasoline equivalent cost of close to $6.00 a gallon.
There are currently 3 companies producing fuel cell cars and are sold only in California. Fueling stations are scarce and for the most part are in either L.A. or the Bay area.
https://www.digitaltrends.com/cars/hydrogen-cars-for-sale/
Edit: This made me think of something else, one manufacturing plant that I know about uses the carbon from natural gas, along with nitrogen fertilizer, to produce cyanide, which is used in the mining industry. They use the hydrogen by-product for internal heating needs and burn off the rest of it. So, maybe they need to start capturing and pressurizing the hydrogen. There has to be some smart-a$$ phrase about a company manufacturing both something that can kill you and a product that will supposedly save the planet (never mind that the latest theory is because the Earth is wobbling more now, due to all the new concrete in China unbalancing the planet, is causing the changing weather patterns).