Newbee needing help please ..

by Eileen
(Weston-super-Mare)

Hey there .. I'm a complete novice and newbee to all this .. have worked at festies for others but iv now got a double decker bus and converting it to a mobile café .. teas coffee breakfasts fries hob jacket potatoes fridge freezers .. can I fit all these items myself .. but then how do I get it certified? Thank you for your help