xmlns:atom="http://www.w3.org/2005/Atom"
3. Apparatus shall be provided with a fireman’s emergency switch which–
(a)either
(i)complies with regulation 4; or
(ii)although not complying with regulation 4, is so installed as to satisfy the fire authority that it would be readily recognised by, and accessible to, firefighters; and
(b)is provided with a lock or catch to prevent the switch being inadvertently returned to the “on” position.