About 100,000 of the 335,000 Coloradans who got cancellation notices have already extended their plans. Insurance Commissioner Marguerite Salazar said those people can now keep those plans for longer.

Regulators also announced they may revise Colorado’s 11 health insurance rating areas, a response to howls from four mountain counties that wound up with highest-in-the-nation premiums. In the “Resort” area of Garfield, Pitkin, Eagle and Summit counties, the cheapest mid-level plan is $483 a month. In Denver, the same plan is about $280 a month.