It is a condition of an approval to install or operate an amusement device, that the activity approved, and any building or work associated with or carried out in connection with the activity, complies with the following standards:
(a) the ground or other surface on which the device is to be or has been erected is sufficiently firm to sustain the device while it is in operation and is not dangerous because of its slope or irregularity or for any other reason,
(b) the device is registered under the Occupational Health and Safety Regulation 2001 ,
(c) all conditions (if any) subject to which the device is so registered and all relevant requirements of that Regulation are complied with,
(d) the device is installed (including erected) and operated in a safe manner.