L122 Approved code of practice (PDF Download) has been approved by the Health and Safety Executive, with the consent of the Secretary of State.
It gives practical advice on how to comply with the Regulations.
If you follow the advice, you will be doing enough to comply with the law in respect of those specific matters on which the Code gives advice.
You may use alternative methods to those set out in the Code in order to comply with the law. However, the Code has a special legal status.
If you are prosecuted for breach of health and safety law, and it is proved that you did not follow the relevant provisions of the Code, you will need to show that you have complied with the law in some other way or a Court will find you at fault.
The L122 Approved code of practice is also known as the Pressure System Safety Regulations 2000