Skip to content
Search HSE.GOV.UK
Industries
Construction
Health and social care services
Pesticides
Domestic gas
Public services
Agriculture
Entertainment
Waste management and recycling
Motor vehicle repair
Offshore oil and gas
Industries A to Z
Topics
Basics for your business
RIDDOR
COSHH
Display screen equipment (DSE)
Asbestos
Work equipment and machinery
Stress and mental health
PAT testing (portable appliance testing)
Work at height
COMAH
Topics A to Z
About HSE
News
Sign up for free updates
Contact us
Information in other languages
Our mission and priorities
Careers
Products and services
Books and products
Training and events
Testing and monitoring
Research and consultancy
Home
Notify HSE
Freedom of Information
Internal operations
Permanent manuals
Open menu
Freedom of information
Operational guidance
New operational guidance
Operational Circulars (OCs)
Operational Minutes (OMs)
Sector Information Minutes (SIMs)
Permanent manuals
Semi-permanent circulars (SPCs)
Permissioning permanent manuals
PM/Permissioning/02 - Level 3 guidance for assessment of technical aspects of COMAH safety reports
PM/Permissioning/03 - Gas Safety (Management) Regs 1996 - Safety case handling & assessment manual
Back to top
Is this page useful?
Yes
No
Report a problem with this page
Updated 2021-12-14