SVA for N1 light goods ceased in April 2012 with BIVA replacing it. However it now contains the C class that allows the testing of a production vehicle modified to pick-up, or modified production pick-up both of which could not be tested previously ( see http://www.the-ace.org.uk/biva-pickup-problems/ )

The only problem is that there is no allowance for BS spec glass and all must comply with EC43r markings to pass.

Latest version of manual, updated April 2012 shown below. The manual is updated on a 6 monthly basis to reflect changes .

http://www.dft.gov.uk/vosa/repository/IVA%20N1%20Inspection%20Manual.pdf

Below is a link to the latest M1 private vehicles test manual, also last updated in April 2012

http://www.businesslink.gov.uk/Transport_files/IVA_M1_Inspection_Manual_1.pdf