Dave Plowman (News) wrote:
PC Paul wrote:
I remember the concept well - lean burn engines were coming along well
but only the European manufacturers had engines close to production
which could meet the proposed emissions, so US pressure was applied to
make cats the only allowed solution...

There is no legal requirement for a cat. - merely to pass the emissions
regs.

But they are required by law to be fitted to new cars sold after 1992 IIRC.

Will a car bought 3 years ago pass an MOT without a catalytic converter
being fitted?