From the Forest Service News Release:

"USDA Forest Service Temporarily Closing All California National
Forests for Public Safety
VALLEJO, Calif., — August 30, 2021. To better provide public and firefighter safety
due to the ongoing California wildfire crisis, USDA Forest Service Pacific Southwest
Region is announcing a temporary closure of all National Forests in California. This
closure will be in effect from Aug. 31, 2021 at 11:59 p.m. through September 17, 2021
at 11:59 p.m. This order does not affect the Humboldt-Toiyabe National Forest, which is
not in the Pacific Southwest Region."

Note that the parts of the Bridgeport and Carson districts of the H-T National Forest that are in CA are not included in this order, so some of the east side Sierra is accessible. From 395 this starts north of Conway Summit

Dale B. Dalrymple