Each state is responsible for and in control of their own state parks, forests, etc. If it is a national park or forest, it is under the control of the federal government. Simple. Numerous states are beginning to reopen closed state facilities. Here in Va, for example, state parks are open for "daytime activities", although the beaches in them are closed except for exercise and fishing. All the camping facilities in the Va state parks are closed as of today. Officially, they are still closed until June 10th, but that could be altered.