Abstract: An apparatus, system, and method are disclosed for automatically displaying regulations in a first language from a search in a second language under the invention, a regulation storage module is configured to store a regulation of a country and associated information in a first language in a database. A regulation search module is configured to search in a second language information in the database regarding a regulation in the first language. A display module is configured to display the regulation identified by the regulation search module.

Abstract: An apparatus, system, and method are disclosed for automatically displaying regulations in a first language from a search in a second language under the invention, a regulation storage module is configured to store a regulation of a country and associated information in a first language in a database. A regulation search module is configured to search in a second language information in the database regarding a regulation in the first language. A display module is configured to display the regulation identified by the regulation search module.

Abstract: A cross-road motor vehicle exhaust gas analyzer uses tunable infrared laser differential absorption spectroscopy incorporating photon infrared detection to determine the absolute fractional absorption of a laser by the gaseous medium. Spectroscopic constants of the gaseous species of interest are applied to the absolute fractional absorption to calculate the pertinent absolute column densities. In addition to a laser that sweeps across one or more absorption line of an component of interest, the system of the invention includes a laser source tunable over an absorption line of a reference species; the calculated column density of the reference species is used to normalize the concentration of the component of interest to the fuel consumption rate of the motor vehicle.