*Note:
- Code of practice gives advice on how to comply with the relevant sections of the Gas Safety Regulations.
- Guidance notes give advice in the interest of gas safety.

^#Note:
Competent Person for underground gas pipe detection under the Code of Practice “Avoidance of Damage to Gas Pipes 2nd edition” refers to a person who is competent by virtue of his/her training and substantial practical experience in underground gas pipe detection. Apart from the underground gas pipe detection, the competent persons may be required to carry out detection for other underground utilities (such as underground electricity cables). In this regard, reference of the said competent persons can be made to the list of Approved Competent Persons for Locating Underground Electricity Cables via the web link below:

- Approved Competent Persons for Locating Underground Electricity Cables