Operating a mandatory occurrence reporting system
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How principal designers, principal contractors and principal accountable persons must set up and maintain a system to report building safety incidents and risks.
Adapted edition
- Document type
- Reference Guide
- Format
- DOCX
- Pages
- 5
- Language
- English
- Version
- 1.0
- Updated
- 2026-09-16
- Category
- Safety & operations
- Licence
- Open Government Licence v3.0
Description
How principal designers, principal contractors and principal accountable persons must set up and maintain a system to report building safety incidents and risks. Consult the original guidance for current legal and operational details.
Contents
- Who must operate a mandatory occurrence reporting system
- Principal designers and principal contractors
- Principal accountable persons (PAPs)
- Systems operated by the principal designer and principal contractor
- Reportable incidents and risks
- Operating the MOR system
- What you must tell people
- Systems operated by the PAP
- Reportable incidents
- Complaints system
- Operating the MOR system
- What you must tell people
- Involving residents
- Assessing reports made on the MOR system
Source and licence
Building Safety Regulator
AttributionBuilding Safety Regulator, ‘Operating a mandatory occurrence reporting system’ (updated 6 December 2024), reused under the Open Government Licence v3.0.
ChangesNeutral text-only adaptation from the official GOV.UK Content API body: headings, paragraphs, ordered and unordered list items and clickable source-link destinations in an appendix preserved. Images, logos, page design, accessible-format request widgets and linked attachments excluded; normalised whitespace, invisible format marks and typography.
Version history
- v1.016/09/2026