I read a while back that Honda has only committed to producing 20,000 Clarities per year. This is for all three versions. At this rate they'll only be sold in CARB states. Honda has used the Clarity nameplate in the past as a technology demonstration vehicle. The best way to demonstrate technology is to get it in the hands of consumers.
That all changed in 2019. Based on looking at VIN numbers Honda produced over 23,000 of the 2018 Clarity, which were shipped to all fifty states. However they shipped less than 1,000 of the 2019 models to ZEV states in the first two months of the year, none to non-ZEV states. After approx February all cars went only to California, which is now up to VIN numbers barely over 5,000. Less than 1,000 have been sold in Canada this year, I don't have any numbers for Japan but can only guess it is similar to Canada. So the total produced for 2019 will probably be less than 10,000.
Honda has said the 2020 model will be sold in Canada. Makes sense because customers there are willing to pay MSRP because of the tax credits. U.S. customers don't seem to be willing to buy Clarity without massive discounts on top of the tax credits, thus the pullback to only California where it seems to sell pretty well without massive discounts, although some people have been able to get some big dealer incentives passed on to them.
So unless they change their strategy they will sell the 2020 in California and Canada only.
Oregon was stiffed this year just like the other ZEV states. Oregon ran out of cars several months ago, likely because of the factory incentive there (which oddly is still available months after Honda stopped shipping cars there). Honda stopped the incentives in east coast ZEV states early in the year thus cars sat on lots on the east coast all year, there are still cars on east coast including some 2018's.
This is all deduced from looking at VIN numbers on dealer lots, Honda claims people can order cars in all states but every anecdotal report I have seen is dealers in other states refuse to order it. Only report I know of is a car ordered in Michigan in March, customer gave up and cancelled in May, car finally arrived at the dealer in September and sold after a few weeks on the lot.