Del. Code Ann. tit. 21, § 4177H
(a) The Division of Motor Vehicles shall adopt and publish rules setting forth the requirements for obtaining certification of an ignition interlock device. No ignition interlock device shall be certified unless it meets the requirements specified and published by the Division. Such requirements shall include provisions for setting a calibration range which complies with § 4177F of this title [repealed] and any other applicable law; and which shall include, but not be limited to, specifications that the device: