Manufacturers - Vendors and Health & Safety people would tell you to keep well away from the bulb and only let a trained service person mess with it.
Yes it does mean unscrewing the covers - a person may need security (Torx) drivers or similar to get access.
I can not imagine any law preventing a person from dismantling their own appliance - although for public safety reasons there are regulations about gas appliances and new electrical installations. Take care... and remember Lord Finchley...
Lord Finchley tried to mend the electric light Himself.
It struck him dead: And serve hint right!
It is the business of the wealthy man
To give employment to the artisan.
Bonne chance...
Ming
October 2014