In Kentucky, the electric chair has been retired except for a subset of people.
 It requires:chair back strength of 150 pounds (68 kg)chair stability if weight is transferred completely to the front or back legsleg strength of 75 pounds (34 kg) applied one inch (25 mm) from the bottom of the legseat strength of 225 pounds (102 kg) dropped from six inches (150 mm) above the seatseat cycle strength of 100,000 repetitions of 125 pounds (57 kg) dropped from 2 inches (51 mm) above the seatThe specification further defines heavier "proof" loads that chairs must withstand
 ISO 7174 specifies stability of rocking and tilting chairs

