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Motor Vehicles: Exhaust Emissions

Answer

The figures below show how many vehicles and models the VCA has tested for in-service emissions and those that failed those in-service emissions tests.

	(a) Number of vehicles tested (figures in brackets are the number of models tested)	(b) Number of vehicles failed-in service emissions (figures in brackets are the number of model failures)
2005 / 2006	38 (13)	18 (1)
2006 / 2007	35 (8)	17 (0)
2007 / 2008	35 (10)	7 (0)
2008 / 2009	45 (10)	21 (1)
2009 / 2010	44 (10)	17 (0)
2010 / 2011	30 (10)	7 (0)

Overall from 2005/06 to 2010/11, 227 individual tests were completed (76 Petrol, 151 Diesel) and 87 vehicles failed to achieve a pass for all pollutants (14 Petrol, 73 Diesel).However, it should be noted that the pass / fail criteria involved a statistical process looking at the average of the vehicle tests carried out. This generally involved a minimum of 3 tests, but any individual failures resulted in more vehicles being tested. Using this process, there were 2 Model Failures (1 Petrol and 1 Diesel).

Following the work in 2010-2011, the focus of the VCA’s emissions testing changed to consider aftermarket alteration of vehicles, both light and heavy duty.

The figures below show how many vehicles the Driver and Vehicle Standards Agency (DVSA) has tested and those that failed in-service emissions tests. In-service emissions testing is interpreted to refer to emissions testing through the MOT service. DVSA does not hold figures for 2005/06.

Car and light Goods vehicles up to 3000kg - DVSA

Financial Year	Tests	Emission Failures
2006/07	26,299,000	771,696
2007/08	24,912,548	809,498
2008/09	25,537,682	791,818
2009/10	26,047,520	766,371
2010/11	26,637,490	734,246
2011/12	26,827,367	710,877
2012/13	26,872,425	656,279
2013/14	27,481,013	641,477
2014/15	27,669,148	607,400

Light goods vehicles between 3000 up to 3500kg - DVSA

Financial Year	Tests	Emission Failures
2006/07	522,875	11,902
2007/08	520,682	11,329
2008/09	541,307	10,415
2009/10	563,829	9,424
2010/11	602,080	8,702
2011/12	608,144	8,965
2012/13	587,779	7,731
2013/14	601,942	8,004
2014/15	616,126	8,308

Secondary information

Type

Written question

Reference

22742

Session

2015-16

Subjects

Exhaust emissions Motor vehicles Testing Vehicle Certification Agency Driver and Vehicle Standards Agency

Contains statistics

Yes

Link

View this Written question on www.parliament.uk