The Federal Motor Carrier Safety Administration has posted official notice of changes to the 34 hour restart provision to the Hours of Service regulations. You can access the official notice here.

Drivers may take a 34 hour off duty break to reset their cumulative totals; 60 hours in 7 days or 70 hours in 8 days.

Until further notice, drivers do not need to have 2 periods of time between 0100 – 0500, and are not restricted to using the restart once every 168 hours.

You can read more about this rule change here.