High Voltage Holiday Detectors are commonly used to locate pinholes in coatings by generating a spark when an electrode passes over an area of bare substrate. Pinholes and areas of a non-continuous coating film can provide a direct path for premature failure of the coated asset. Historically a rule of thumb across the coating industry had been to utilize 100 volts per mil of coating as the recommended voltage setting for holiday detection. A paper presented at a recent AMPP conference1 provided compelling evidence, and confirmed industry suspicions, that the rule of thumb and test voltages specified by nearly every published standard were inadequate to reliably detect all holidays. In response, industry stakeholders worked to build consensus and update the relevant standards with science-based and experimentally-proven specifications that help ensure High Voltage Holiday Detectors are used appropriately, and with the correct voltage settings, to reliably detect holidays. This paper provides a review of these updates.