Katalysatorpflicht#
Catalytic Converters, Compulsory Use of: Since January 1, 1987 catalytic converters have been compulsory on all new cars with more than 1,500 cm3; since January 1, 1988 they have been compulsory for all new cars with petrol engines. Catalytic converters have a ceramic matrix with catalytically active precious metals (platinum or rhodium) that reduce the carbon monoxide, hydrocarbon and nitrogen oxide contents of the exhaust gases. The compulsion to use unleaded petrol is a further contribution to reducing environmental pollution. Since January 1, 1995 the tax on motor vehicles for cars without catalytic converters has been increased.