The Washington Declaration to not Operate any Motor Vehicle without an Ignition Interlock Device is a law passed by the State of Washington which requires all drivers convicted of DWI/DUI to install a breathalyzer device, known as an Ignition Interlock Device (DID), in their vehicle before they can be legally allowed to drive. This law applies to all drivers convicted of DWI/DUI, regardless of how long ago the offense was committed. The DID require the driver to blow into the device before starting the car, and the device measures the driver’s blood alcohol content (BAC) to ensure they are not over the legal limit. If the driver’s BAC is too high, the car will not start. There are two types of Washington Declaration to not Operate any Motor Vehicle without an Ignition Interlock Device: the Mandatory DID Program and the Voluntary DID Program. The Mandatory DID Program requires all drivers convicted of DWI/DUI to install and DID in their vehicle before they can be legally allowed to drive. The Voluntary DID Program allows drivers to voluntarily install and DID in their vehicle, and in return they receive a reduction in the length of their suspension period.