Regulations 3(1)(d) and 5(1)
1. Any accident causing the death or loss of, or serious bodily injury to, any person.
2. Any damage to, or defect in, a pipe-line.
3. Any substantial change in the position of a pipe-line.
4. Any substantial change in the seabed or subsoil in the vicinity of a pipe-line or pipe-line works.
5. Any escape of anything from, or inrush of anything into, a pipe-line.
6. Any damage to a vessel or installation which may affect its safety or that of a pipe-line attached to it.
7. Any parting of an anchor or winch cable of a vessel being used to lay a pipe-line.
8. Discovery of a defect in any plant, machinery, equipment or material which might endanger the safety or health of any person or affect the safety of a pipe-line.
9. Any uncontrolled explosion or fire.
10. Any failure of a lifting appliance or of a pipe tensioning appliance.
11. Any emission of jonising radiation or of radioactive or other toxic substances which may endanger the safety or health of any person.