What exactly is the law regarding catalytic converters?
Discussion
As a result of a tangent on the DPF\MOT thread I started rambling on about catalytic convertors, and not wanting to derail that thread further thought I'd start a new one.
As I understood it, upto 2012, at MOT time:
but there was nothing in the law mandating a cat for any car, just the reality that it was extremely difficult to pass the stricter emssions test without one.
Relatively recently the MOT rules changed such that if a car "was required to have a cat when it was built", the cat must be present at MOT time (even if the car can now pass the emssions test without it).
Firstly us that understanding right?
And if so where does the 'requirement' to have a cat come from? Can anyone point me to the relevant piece of legislation?
As I understood it, upto 2012, at MOT time:
- cars registered prior to 1st August 1993 must pass one of two emissions tests, one for cars without cats, and a stricter one for cars with cats.
- cars registered on or after 1st August 1993 must pass the stricter of the two tests above
but there was nothing in the law mandating a cat for any car, just the reality that it was extremely difficult to pass the stricter emssions test without one.
Relatively recently the MOT rules changed such that if a car "was required to have a cat when it was built", the cat must be present at MOT time (even if the car can now pass the emssions test without it).
Firstly us that understanding right?
And if so where does the 'requirement' to have a cat come from? Can anyone point me to the relevant piece of legislation?
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