The document discusses revising a company's permit to work system. It provides pointers to consider, including adequately training personnel, maintaining isolations until work is complete, and requiring mechanical isolation procedures. It also discusses improving shift handovers and control of suspended permits, as well as potential impacts of changes like increased headcounts. Different types of permits for hot work, enclosed spaces, electrical isolation and underwater work are listed. The functions of a permit to work system to ensure authorization, communication of hazards, safety of work and worksite, and site restoration are outlined. Implementing permit to work systems varies by site but underlying principles remain the same.

1. REVISING
SYSTEM
PERMIT
TO WORK

2. Important pointers to consider in
Permit to Work System
Revising Permit to work system 2
PTW is part of the operator's management
system.
01 The PTW system must be improved, and
personnel must be adequately trained.
02
PTW and required mechanical/electrical
isolations should remain in force until work is
completed.
03
A mechanical isolation procedure is required for
the physical "lock-out" and "tag-out" of isolation
valves.
04
Improve shift handover and control of
suspended PTW.
05
Physical locking of valves will slow down work,
and increased offshore operator headcount may
be required.
06

3. Revising Permit to work system 3
Leading vs Lagging HSE Indicators
There are the
Outcomes
we try to avoid
The safety
pyramid –
factors to
consider
Fatality
Lost Time
Medical Recordable
First Aid
Near Miss-incident occurred
Leading
Indicators
Lagging
Indicators
Reading the
signs of
emerging risks
See
The
Risk
Leader site visits; Leader Audits
Permit to work audits; ISA Audits; HSE Training
Safety Critical Equipment PM; PM Backlogs
Closure of actions-investigations; audits; HAZIDS

4. Procedural Definitions, Duties and responsibilities
Revising Permit to work system 4
PTW Procedure Definition Duties Responsible Person
Initiates permits. Defines the scope of work.
Defines safety requirements. Monitors are working practices.
Authorizes work go-ahead. Defines plant status for work.
Arranges any required isolations. Approve work go ahead.
Performs all required gas testing.
Performs inhibits and enables on Fire and Gas & ESD systems.
Checking of permits before issue. Administration of PTW
Procedure. Logging /Filing of cancelled and suspended permits.
Ensures no conflict of work between different area authorities.
Task Supervisor
Safety Authority
Installation Authority
Area Authority
Authorized Gas Tester
Senior Panel Operator
Permit Controller
The person responsible for the work
Area HSE Manager
Area Commissioning Manager
Commissioning Shift Supervisor
Senior HSE SV Commissioning SV
Senior Panel Operator
Permit Controller

5. Company’s Permit to work system
Revising Permit to work system 5
Hot Work
Permit
Work involves hot
work to be carried
out, outside the
designated area, at
sea?
Enclosed
Space
Permit
Does work involve
entry into an
enclosed space?
Working
Aloft/
Oversize
Permit
Work involves a
height of more than
2 meters above
deck or suspended
above water?
Electrical
Isolation
Permit
Electrical hazard
involved?
Under-
water
Permit
Does work involve
underwater
operations?
01 02 03 04 05

6. The Functions of Permit to Work System
Revising Permit to work system 6
To ensure the appropriate
authorization
To inform the performers of
the potential hazards of the
work and the required
safety precautions and
equipment.
To ensure that the work
starts safely and continues
to be safe while the job is
carried out.
To ensure that the safety of
the surrounding areas is
not jeopardized.
To ensure that the worksite
is ready and safe for the
work to be performed.
To ensure that when so
required, the worksite is
returned to its original
state.

7. Implementing Permit to work is a task in itself
Revising Permit to work system 7
▪ Each site has variations depending on the
nature of the operation and the type of work
taking place on the site.
▪ The underlying principles remain the same,
yet each implementation of the permit to
work safety system is different.
▪ Primary understanding remains essential -
regular audit of permits is an invaluable
function and can result in new procedures,
specific training interventions, improved
business “rules” in the permit system and a
more effective maintenance process.

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