GERT8000-HB7 Iss 9
General duties of a controller of site safety (COSS)
Synopsis
Summary Of Changes
The requirements concerning walking on or near the line were generic and took no account of the varying levels of competency among the intended audience. There were differing interpretations as to what was intended to be permitted.
To address this, new sections two and five have been added to:
- provide a clear definition within the Rule Book of when walking on or near the line is permitted and for what reasons
- define the extent to which walking can be permitted
- define the permitted arrangements for crossing lines open to traffic when walking.
Section four (formerly section three in issue eight) and section six (formerly section four in issue eight) have been revised to remove obsolete references to safe work leader (SWL).
In section 3.2, the wording ‘must not rely on these arrangements’ has been amended to ‘must not use these arrangements’ as this conveys the meaning in a more easily understandable way.
Noise from work that is being carried out can prevent any member of a group from hearing any warning that is given when the safe system of work in use is either equipment or lookout warning. New instructions have been included in sections 6.7 and 6.8 to say that the COSS must not use equipment or lookout warning if this would be the case.
The changes to this handbook contribute to reducing safety risks in a critical and high-profile area. In doing so, there are expected to be benefits to reliability of operations and efficiency of engineering activity.
Optional reading and resources:
Standards quarterly webinar - September 2024

- Issued:
- 07/09/2024
- Published:
- 07/09/2024
- In Force:
- 07/12/2024
- Next Review:
- 07/12/2025
Details
Consultation Status | Open |
Consultation due | 14/04/2025 |
Consultation sign-up | Consultation sign up |
Consultation Link | Consultation link |
Vehicle Assessment | No |
Supersedes | GERT8000-HB7 Iss 8 |
Associated Standard | GERT8000-RBBL Iss 40, GERT8000 Issue HB Iss 18 |
Lead Committee | Traffic Operation and Management - TOM |
Supporting Committee | Plant - PLT; Control Command and Signalling - CCS |
Impact Assessments
![]() Registered |
24 IA13; 24 IA14 |
Deviations
![]() Registered |
23-040-DEV Revised 17-02-2025
Possession Optimisation - enabling clearer safety communications in possessions through web-enabled devices
24-022-DEV Revised 03-12-2024
The use of T3-A as a process for the protection of T3 possessions on Network Rail managed infrastructure
22-101-DEV Revised 05-12-2024
The use of signal disconnection as secondary protection for T3 possessions - National Deviation |