[Nimbus117]

Some new regulations are out for the MOT road worthiness test here in the UK, looks like aftermarket HiDs will definitely result in a failure without headlamp washing and leveling:

VOSA CHANGES TO THE MOT TEST EFFECTIVE FROM 20 MARCH 2013
What are the new elements to the MOT rest?
For Class 4, 5 and 7 vehicles:

Headlamp levelling and cleaning devices when fitted for HID or LED headlamps
Main beam ‘tell-tale’ warning
Battery (including batteries for electric or hybrid vehicles)
Electrical wiring and connectors
Trailer electrical socket security and damage
Operation of 13-pin trailer electrical sockets using an approved trailer socket tester
Operation of the steering lock (where fitted) including a malfunction warning in
respect of an electronic steering lock
Electronic power steering malfunction indicator lamp
Electronic parking brake control and malfunction indicator lamp
Electronic Stability Control (ESC) components, including the switch (if fitted) and
malfunction warning
Brake fluid warning lamp illuminated or inoperative
Tyre Pressure Monitoring Systems (TPMS)
SRS components including airbags, seat belt pre-tensioners, seat belt load limiters
and SRS malfunction warning lamp
Engine mountings
Speedometer
Indirect vision devices (where they replace obligatory mirrors)