Abbreviations & Definitions Issue Date March 2019 5 if so desired. PRS Pass after Rectification at Station -The process where minor defects maybe rectified within one hour after the test, but before recording the results on the MOT Testing Service. QC Quality Control QM Quality Management. The system or processes used by the AE to manage the quality of testing and operations in their VTSs. RBT Roller Brake Tester Regulations (the) The Motor Vehicles (Tests) Regulations 1981 as amended. SA Site Administrator is a person who can carryout VTS administrative functions. Secretary of State Refers to the Secretary of State for Transport. SM Site Manager responsible for the day today running of one or more VTSs. Security CardIs a card issued to an authorised user to access the MOT database via the MOT Testing Service. SN Special Notice –- an official notice issued from time to time by DVSA to inform AEs, Testers and other system users of changes to the testing scheme. SNs may also be used to highlight areas of concern and to advise of developments to the Service. Sole Trader An individual carrying out business on his own behalf rather than on behalf of a partnership, company or other body. Tester MOT Tester - a person appointed by an AE to carryout tests, Inspectors appointed by Designated Councils to carryout tests, all of which are approved by DVSA. Also DVSA staff appointed under section A of the Road Traffic Act. Test Slots A test slot is a chargeable unit that enables the registration of a computerised test. ULW Unladen weight –- The weight of the vehicle inclusive of the body and all parts which are ordinarily used with the vehicle when working on a road. Unladen weight does not include the weight of water or fuel used for the propulsion of the vehicle, or of loose tools and loose equipment. V5C Vehicle Registration Certificate issued by the Driver and Vehicle Licensing Agency. VT20 An MOT Test Certificate, which includes separate English and Welsh language versions (VT20W) and which may also incorporate advisory information.