To help control whilst manoeuvring, every boat must have an effective means of reversing which can be operated from the steering position. [4.4]

Batteries must be secured in order to prevent movement and damage, which, for example, could detrimentally affect the operation of other vital systems. By securing batteries in the proper way you can also prevent accidental battery terminal contact with conducting material, which could cause a spark. This also helps ensure that electrolyte is not spilt. [4.2]