ANSI/ESD S20.20 covers static-control requirements to protect electronic parts, assemblies, and equipment susceptible to ESD damage from human body model (HBM) discharges ≥ 100 V. Unlike previous versions, since 2014 the standard has also covered parts with withstand limits of 200 V Charged Device Model (CDM), and 35 volts on isolated conductors.
Since 2014 the standard has required both resistance and walking body voltage tests.