Suppose you currently have health insurance from your state's marketplace, and you have enough income that you are not eligible for any subsidy. Now suppose you lose your job and begin collecting unemployment, and your income is now in the range where you would qualify for a subsidy. How should this be treated when you don't know how long you will be unemployed for? Can you immediately begin to receive the subsidy and then immediately stop receiving it when you get a new job? (Let's assume the new job makes you ineligible for the subsidy once again.)
One important factor is that I'm guessing you wouldn't want your plan to change, because that could reset your deductible.
If rules vary by state, then I'm specifically interested in NY and IL.