Guidelines for Permit

Holder / Receiver

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 • A permit to work system is one of the key
safety measures used to ensure that hazardous
task are performed under controlled
conditions. Within the system, the Permit to
Who is work Holder plays a crucial role ensuring
compliance with safety regulations and
Permit mitigating risks.
• A PTW holder is an individual responsible for
Holder / accepting, receiving and complying with the
conditions outlined in a work permit before
Permit starting any task. They act as a bridge between
Receiver? workers and the issuing authority to guarantee
that all necessary safety precautions are in
place.
• PTW Holder also known as PTW Receiver,
Lead Worker, Lead Executer, etc.
 • A Permit To Work is a written document that authorizes trained personnel to
perform a specific work at site subject to minimum safety precautions and
hazards which must be controlled.
• A PTW is issued before starting work to verify that the work has been
adequately planned in order to observe safe work practices.
• A PTW is a guide for all non-routine, high risk and hazardous activities.
• PTW prevents likely adverse interaction between two different activities held
at the same workplace at the same time.

What is • Work activities that occur on the premises where the Work Supervisor
(Executor) is not the equipment owner must be conducted using a PTW
(Permit To Work).

PTW? • The PTW is one of the last barriers of safety before the work is conducted.
• Before issuing the PTW, we should ensure:
 All the energy sources are isolated positively.

 Equipment must be free from residual energies and LOTO, draining,

venting, purging, blinding should be completed.

 Inspection of the work site is completed jointly by Permit Issuer and

Permit Receiver / Holder.

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High Risk Activity
• The activity which involves the significant hazards which could lead
to the immediate danger to health, safety, environment and property.

Examples:
• Confined space entry • Radiography,
• Critical lifts • line break
• Open flame hot work • Hydro jetting
• Pyrophoric material handling • The jobs that requires variance
to any safety procedure.
• Work at heights
• And etc.
• Hot tapping

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Types of Work
General Work / Cold Work
• Jobs not meeting the hot work criteria
• The tasks and equipment involved in the job do not create an ignition source
Hot Work
• Work that requires equipment or tasks that create a flame, spark, heat or any source of ignition
• Open Flame Hot Work
• Contained Hot Work
Open Flame Hot Work
• Type of hot work that involves open flame, flying sparks, burning metal, flying or dropping source of
ignition or other uncontained sources of ignition.
• At least one dedicated Fire Watch, Approved Habitate/ Firebox, 15 meter radius inspection for
flammable and combustible material, JSA, Post-work monitoring of job site for at least 30 minutes
are required to perform activities.
Contained Hot Work
• Type of hot work that does not create open flame, flying sparks, burning metal or any flying or
dropping source of ignition; but has a potential to create a source of ignition.
• Does not require Fire Watch, Firebox or portable extinguisher and Requires continuous gas
monitoring within classified areas 5
 General work Contained Hot Work Open Flame Hot
Work
• Insulation • Photography • Grinding
• Scaffolding • Vehicle Entry (any motorized • Cutting
• Blinding / De- vehicle) • Welding
blinding • Use of Generator/ Forklift/ • Torches or open
• Opening process Internal Combustion Engine flame
equipment using • Drilling • Soldering
hand tools • Concrete Chipping • Heating such as
• Manual Handling • Grit Blasting PWHT, Bearing
• Excavation using • Radiography heating etc.
hand tools • Pneumatic Wrench (Impact • Buffing (using
Wrench) power tools and
• Non-intrinsically safe metal wire brush)
equipment
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 1. PTW Holder:
• Type of work and Job Category and Tools are identified
2. PTW Holder and PTW Issuer:
• Joint site inspection to be performed.
• Hazards and controls to be identified.
• All involved personnel Qualifications / Training to be verified.
PTW Process: 3. Gas Test:

Identification • Initial Gas Test by AGT- Authorized Gas Tester

• Subsequent Gas Testing if required. (For extension/
of Job Scope Revalidation, If PTW issuer determines, If identified in
JSA/PTW).
• LEL range for Hot work permit is <10% in open area and 0% in
Confined Space.
• Fire watch / Hole watch will perform continuous gas
monitoring.

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 4. PTW Authorization:
• If the work is involved Open flame Hot work, the habitat / Firebox should be inspected
by the Fire and Safety representatives to ensure the firebox standards.
• If the permit is issued for any high-risk activities, it should be issued by a higher
authority such as Operator’s Supervisor / Shift Supervisor.
• PTW issuer and PTW Holder / Receiver should sign to commence the work.
• The main area owner (Board Operator / Area Manager/ Department Manager) to be
informed for tracking the permits.

PTW Process: 5. Displaying the permits:

Identification •
•
The Permit Issuer may post the Permit Issuer copy in a respective area.
The PTW Holder/ Receiver must visibly post the Original (Field Copy) in a permit pouch

of Job Scope with relevant documents at the job site.

6. Toolbox Talk:
• Toolbox talk / Pre-job safety meeting to be conducted by PTW Holder.
• This discussion takes place at the job site immediately prior to starting work.
• Typically takes around 10-15 minutes.
• The Permit Holder must ensure all workers have signed the back of the PTW to indicate
participation in the toolbox talk.

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 8. If any conditions change :
• Permit Issuer and Receiver must review the changes.
• Work must be stopped and Permit Issuer immediately informed if there is Change in
scope of the work or work method or Change in the tools or equipment being used which
changes the hazard.
• If changes affect the permit conditions, new permit must be issued.

9. PTW Validity and Extensions:

• The Permit to Work is valid for one shift.

PTW Process: • It can be extended to one more additional shift if the Job Scope and conditions are
remained unchanged.

Identification • All signatories who authorized the permit should sign again on the permit upon verifying
the conditions.

of Job Scope 10. Revalidation:

• Revalidation must be done anytime during the validity of the permit, if Change in Permit
Issuer / Permit receiver / After plant emergency / work stopped more than one hour for
any reasons.
• Gas test must be repeated.
• All signatories who authorized the permit should sign again on the permit upon verifying
the conditions.

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 11. Emergency:
• Permit will be suspended.
• Permit Holder should stop all activity and notify the
Permit Issuer.
• Permit should be revalidated to restart the work.

PTW Process: 11. Close-out:

• The PH must inform the Permit Issuer that work is
Identification complete.
of Job Scope • PH and PI will conduct a job inspection.
• PI must verify all documents are attached with the
PTW pack.
• The PH and PI should sign to closeout the permit.

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 Permit Issuer
The person who has the responsibility and accountability over a certain department or facility, thus who has the
power to issue the Permits to Work raised, or holds and suspends them.
The Permit Issuer is the Equipment/Area Owner or approved Baseload contractor.
Permit issuer is responsible to:
• Have the overall responsibility on a certain facility, unit or area;
• Verify PH’s certification before issuing a permit.
• Determine if the work to be conducted per the requested permit is appropriate to be performed based on current
conditions in the work area and/or capabilities of the existing work crew.
• Review and discuss the planned scope of work with the PH.
• Identify hazards associated with the permitted work and document on the PTW Hazard Analysis.
• Conduct gas testing at the work site as required.
• Ensure operator presence requirements for first integrity line break for opening process equipment.
• Notify are owner / control room.
• Verify all PTW supporting documentation is compliant prior to the work beginning and during permit closeout.
• Review the emergency equipment, escape routes, assembly points, and alarm locations applicable to the area of
work, with Lead Worker.
• Review the permit with the other area supervisor and obtain the co-signature of other area supervisor on the PTW
for permits where tasks specified in the PTW will affect other areas.
• When the permitted work is stopped or completed, conduct a job site inspection with the Lead Worker to verify
the work is complete, housekeeping has been performed, and the area is suitable for return to service.
• Proper communication and turnover between shifts. 11
 Permit Holder / Reciever
• Have the authority and accountability to fulfil PTW requirements (safe execution of work, control measures recorded on PTW, etc.) by taking decisive
actions; and

• Have the adequate language skills to correctly record Permits to Work.

• Have necessary awareness on PTW procedure through relevant training and guidance.
• Ensure all hazards and controls recorded for the task at hand are discussed with workforce by toolbox talks;
• Ensure all PTW supporting documentation is compliant and available prior to requesting and during PTW activities.
• Raise required Permits to Work, with the required attachments;
• Provide the PTW attachments that are specific to the task and/or the performing party, valid and complete with all required documents;
• Ensure valid PTW is displayed properly at site for audits;
• Ensure all recorded control measures are taken and maintained, until the relevant hazard is eliminated or task at hand is complete;
• Fulfil the conditions agreed to on the PTW, JSA, and any associated permit documents for the duration of the work.
• Understand the plant alarms and ensure all workers know the location of emergency equipment including evacuation routes and assembly points.
• Stay at the job site during the job.
• Ensure that hourly gas monitoring readings are promptly recorded in appropriate section of the PTW.
• Ensure operator presence requirements for first integrity line break for opening process equipment.
• Stop work and informing the Permit Issuer immediately if the hazards or conditions of the job site change.
• Inform the Permit Issuer immediately if the scope of work changes.
• Coordinate/arrange the availability of all necessary resources.
• Verify the training credentials of each work crew member.
• Ensure that each member of the work crew fulfils the conditions and mitigations listed on the PTW, JSA, and any associated permit documents as
written.
• Ensure proper communication and turnover between shifts. 12
 Permit Limitations
PH may receive more than one permit simultaneously, however the
following criteria must be met:
• The permits are required for different tasks but for completion of the
same job.
• The permits cannot be for tasks on two separate jobs.
• The permits are not for different craft (e.g., mechanical and electrical
jobs).
• PH can maintain line-of-sight with the respective work locations.
• Lead worker is not acting as “Fire Watch” on any other permit to
work (PTW).

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 Fire Watch
At least one dedicated Fire Watch is required for all open flame hot work and duties include but are not limited
to the following:
• Complete Fire-watch training.
• Speak and read English well enough to communicate.
• Understand and locate the facility Alarms.
• Have a portable warning device to alert personnel .
• Ensure non-essential personnel remain outside barricades.
• 15-Meter Inspection: Remove/cover flammable and combustible material.
• Monitor the jobsite for at least 30 minutes after job completion.
• Ensure detector is on, and listen for alarm. Record the gas monitoring readings hourly.
• Ensure certified and functional fire extinguishers or fire hoses readily available.
• Whistle for any alarm.
• Monitor the hot work activities on all sides of the work and be alert for signs of a fire.
• Correct or stop conditions which may lead to a fire, including poor work methods that result in sparks or slag
exiting the approved fire box.
• Stop the work and immediately extinguish incipient fires within the capacity of the equipment available.
• Cover any drain openings.
• More than one Fire Watch should be considered, if Open flame hot work is conducted at an elevation,
Firebox/ habitat containment cannot be constructed as per the Firebox Standard, Multiple sources of open
flame or it is required by JSA. 14
 Fire and Safety Representatives /Fire Technician
• All open flame hot work permits must be authorized by Fire and Safety
representatives or Fire Technician before authorizing open flame hot
work to begin.
This is applicable for issuing the permit, extending the permit and
revalidating after a work stoppage due to emergency.
• FS rep/Fire Tech must inspect the hot work job site for adequacy of:
The fire box.
Removal or shielding of combustible materials within the 15 meter
radius.
Availability of fire fighting equipment (certified portable fire
extinguisher).

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CONFINED
SPACE
ENTRY
What is Confined Space
A confined space is defined as an area that meets the following three(3)
requirements:
1. Is large enough & so configured that employee can bodily enter &
perform assigned work
2. Has limited or restricted means for entry or exit (i.e. tanks, vessels, silos,
pits, vaults or hoppers)
3. Is not designed for continuous human occupancy
Confined Space Examples

Vessels Storage Drains

Columns V-Ditch Excavations
Tanks (Deeper than 1.2 meter)

Boilers (open or Closed) Pump Sumps

Valve Pit
Entry
 Entry is the action by which a person passes through an
opening into a confined space.
 The entry includes ensuing work activities in space and is
considered to have occurred as soon as any part of entrant’s
body breaks plane of an opening into space
Types of Confined Spaces
Permit Required Confined Space-
a Confined Space that has one or more of the following characteristics:
o Contains or has a potential to contain a hazardous atmosphere
o Contains a material that has the potential for engulfing an entrant
o Has an internal configuration such that an entrant could be trapped or asphyxiated
by inwardly converging walls or by a floor which slopes downward and tapers to a
smaller cross-section or
o Contains any other recognized serious safety or health hazard.

Non Permit Confined Space-

a Confined Space that does not contain or with respect to atmospheric hazards, have the
potential to contain any hazard capable of causing death or serious physical harm.
Atmospheric Hazards
Atmospheric Hazardous Conditions
• Any conditions out side of the safe limits below are considered as
Hazardous Conditions.
Safe Limits
• Oxygen should be between 19.5% and 23.5%
• Lower than 19.5% - Oxygen Deficient
• More than 23.5% - oxygen enriched
• Flammables should be less than 10% LEL
• Hydrogen Sulfide should be less than 10ppm
• Carbon Monoxide should be less than 25ppm
• Toxic material concentrations are below 50% of its IDLH(Immediately
Dangerous to Life and Health)
Physical Hazards

• Atmospheric Hazardous Conditions

• Temperatures
• Noise
• Electrical
• Slips, Trips and Fall
• Wet Surfaces
• Falling objects
• Poor Visibility
• Poor Access /Egress
• Collapse of structure
• Cave-in
• Flooding
• Radiation
 Roles and Responsibilities
Entrant Permit Issuer
Entrant is a person who is trained and authorized PI is the qualified owner of the
to enter and perform the activity is CS. Who; equipment or area in which the confined
• Attends / participates in the tool box safety space entry will be conducted. Permit
meeting Issuer authorizes entry into confined
space.
• Uses the PPE and other safety equipment as
per the permit requirement • Production Shift Supervisor shall be
the Permit Issuer for the Confined
• Alerts the Hole Watch if there are changes in
Space entries occurring in their
the entry conditions
respective units regardless of the
• Exits the confined space if: ownership of the equipment.
 there is a plant alarm • Area Supervisors shall be the Permit
 the Hole Watch orders so Issuer for Confined Space entries
 the gas detector gives any alarm occurring in the non-production
areas.
 any conditions not stated in the permit
is detected
 Roles and Responsibilities
Entry Supervisor
ES is the person accepting the conditions / requirements specified in the confined space entry
permit. Authorizes entrants and work inside the confined space. He,
• Verifies the permit conditions
• Accepts the permit conditions
• Carries out Tool Box Talk and ensuring that the job scope, hazards / precautions are
understood to all entrants
• Ensures that entry points are secured after completion of job and hands over entry permit for
close out
• Attach and return CSE Permit field copy and Hole Watch Entry Log Sheet to Permit Issuer at
the time of CSE permit close out at end of the shift:
• Save all approved copies of JSA and Rescue Plan used throughout the job.
• Provide all approved copies of JSA and Rescue Plan used throughout the job to Permit Issuer
while closing the last CSE Permit when job is completed and NO more Confined Space entry is
planned.
• Documents the problems faced during the entry operations in CSE permit.
 Roles and Responsibilities
Authorized Gas Tester
AGT direct employee who has completed Gas Detection and Monitoring Training and certified.
They are the only ones who can do the initial gas test.

Hole Watch
HW is the person stationed outside the entry point of a Confined Space.
Hole Watch is responsible for
• monitoring the authorized entrants and performs all duties assigned in this procedure
including but not limited to communicating with entrants,
• tracking the entry and exit of entrants from the Confined Space,
• ensure that Entry Points are blocked with Physical Barriers and Lock before leaving the
Confined Space unattended,
• Ensures that entrants knows the condition of PTW, JSA and rescue plan. Verifies that entrants
are having the correct PPE as required by JSA, PTW or rescue plan.
 Roles and Responsibilities
• Hole watch should know the conditions listed in PTW, rescue plan or JSA before allowing any
entrants into his entry point.
• He should verify that entrants has the right training by verifying his training cards and proper
PPE for the entry.
• Knows how to interpret gas test results and ensuring that reading are log in the Hole watch
entry log sheet.
• Communicate with entrants by visual, audible or mechanical means.
• Track personnel – record their entry & exit on the confined space entry log sheet and keep
track of compliance cards on the Confined Space Access Board.
• Knows the Emergency action required for the activity.
• If backup hole watches required, Both Hole watch/ back up hole watch must fill the Hole
Watch Entry Log sheet.
• CSE Permit should be revalidated if the Hole watch changes.
Backup Hole watch
A Back-Up Hole Watch is allowed to take charge of Confined Space with following
conditions are complied with:
• Where the Hole Watch cannot stop the job to get a break for himself or could not follow
the work rest cycle as per heat stress mitigation program.
• Both Hole Watch and Back-Up Hole Watch shall comply with all the Safety
Requirements as specified in Confined Space Entry Procedure.
• Both Hole Watch and Back-Up Hole Watch shall take part in the CSE permit receiving
process (i.e. Job scope discussion/joint job site inspection with PTW Issuers and
hazard/mitigation identification/tool box talk).
• Both Hole Watches shall put their initials and sign on CSE permit.
• Hole Watch/Back-Up Hole Watch cannot work with other PTW/job while current CSE
permit is live.
• Back-Up Hole Watch requirements shall be documented in the CSE JSA.
 Confined Space Controls
CSE Permit – Permit should be obtain for Entry (Valid for one shift and can be extended to
one additional Shift).
JSA – All activities, Hazards and Mitigations to be identified.
Rescue Plan – Rescue plan should be prepared by the Fire and Safety Coordinator based on
the rescue categories.
Work Permit – Work permit to be obtained for the intended job.
Entry Log Sheet: Hole watch should maintain the Entry Log sheet and monitor the Entry and
Exits of the Entrants.
Energy Isolation: All energy sources should be isolated, Locked, tagged and Verified for the
residual energies.
Gas Testing: Initial Gas testing should be conducted by the AGT (O2, H2S, Co, LEL, PID). Gas
test should be repeated when required (Revalidation, Extension, required by JSA, etc.)
 Confined Space Controls
Gas Monitoring: Hole watch should monitor the atmosphere continuously and record it
every one hour.
Hole Watch: A trained and dedicated Hole watch should be available continuously at the
entry point.
CSE Board: Hole Watch should post the IDs of the entrants in the CSE board and remove
the IDs’s of personnel who exits the CS.
Physical Barrier: When CS is left unattended, a Physical Barriers with a Green Lock
should be placed on the Hole/Entry point of CS.
TBT: Entry supervisor should conduct TBT at the work location prior to the
commencement of CSE activities.
Electrical Safety: Portable electrical hand tools and lights, if used, must be connected to
Ground Fault Circuit Interrupter (GFCI).
Additional Controls: All Gas cylinders (if required) should be kept outside.
Rescue Plan
• Rescue plan must be discussed with all entrants in the toolbox talk, attached to the CSE
permit and posted at entry point.
• Fire Department shall confirm the appropriate entry conditions; and validate Rescue
Plans for each Category 1 and Category 2 Confined Space entry by signing the CSE
Permit
 Rescue Standby (RS): Category 1 – Requires rescue personnel to be locally ready
on standby and equipment to be on scene. This category is required due to
unknown potential hazardous atmosphere in Confined Space, before initial
testing. Rescue personnel should be able to initiate rescue of the injured person
in 3 – 5 minutes.
 Rescue Ready (RR): Category 2 – Requires rescue equipment to be available in
proximity to the Confined Space. Rescue personnel to be able to respond to the
entry site and initiate rescue of the injured person in 5-10 minutes.
 Rescue Available (RA): Category 3 – Requires rescue personnel to be able to
respond to the entry site and initiate the rescue in 15 – 20 minutes.
LOTO – Lockout
and Tagout /
LT&T Lock, Tag
and Try
 LOTO / LT&T?
Lockout tagout is a protection
system against unintentional
exposure to hazardous energy
from equipment and machinery.
A lockout device, such as a
padlock, secures the energy
isolating device while a tagout
device (i.e. a tag) warns
employees not to use the
equipment.
Proper lockout/tagout (LOTO)
practices and procedures
safeguard workers from
hazardous energy releases.
 LT&T Process
1. Identify Hazards and Isolation Points
• Isolation points and methods to be identified using isolation certificate / LT&T
List.
• Hazardous Energy Sources

 Electrical: Motor Control Center (MCC) and local panels and circuit breakers,
etc…
 Chemical: Gases, liquids, flammables, acids, caustics etc…
 Thermal: Steam, heat, etc…
 Mechanical: Stored energy, hydraulic pressure, springs, rotating equipment,
etc…

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 LT&T Process
2. Shutdown
• This step requires operating machines or equipment to be shut down. Orderly
shutdowns are necessary to avoid additional hazards caused due to stopping abruptly.

3. Isolate machine from energy source

• This step requires isolating the machine or equipment from its source by using energy-
isolating devices. It’s important to note these devices are not the normal operating
controls. Energy-isolating devices should physically prevent the transmission of energy.
Examples include a circuit breaker, a line valve or a block. ON/OFF and STOP buttons
do not qualify as energy-isolating devices.
• Energy Isolating Device is a mechanical device physically preventing the transmission
or release of energy to which a Lock Out Device can be attached. Examples: Manually
operated circuit breaker, Manual switch with disconnected supply conductors, Block
Valves, Motorize Block Valves, Pneumatic Valves, etc.

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 LT&T Process
4. Apply lockout tagout devices
• Lockout
 A lockout tagout device (e.g., breaker or ball valve lockout) holds the energy isolating
device in a SAFE / OFF position. Safety padlocks (key or combination) then prevent the
removal of the energy-isolating device to ensure energy cannot flow from its source to the
machine. Assigned locks should be applied to each energy-isolation device.
• Tagout
 Tagout refers to using a tagout device on an energy-isolating device. It should be securely
fastened to the isolating device to indicate the energy-isolating device and equipment
may not be operated until the tag is removed. Essentially, it warns others not to restore
energy. The tag should include the name of the employee who applied it and why. That
way, if anyone has questions as to why the equipment is locked out, they know who to
ask.
• Personal locks and tags should be used on:
 Line valves
 Circuit breakers / electrical disconnects
 Safety blocks on moveable parts
 Blank flanges on pipelines 35
 Locks

Equipment High Voltage End User Lock– LT&T LT&T Verifier

Owner Lock – (>415V) Lock – On the Coordinator Lock – On the
On the On the Equipment Lock – On the Lock Box
Equipment Equipment Lock Box
Tags
• Shall indicate the lockbox number
• Shall be printed in permanent marker
• Shall be filled out completely and
legibly
• Must be securely attached with
plastic tie-wraps.
• If any information is not legible and
the lock box is active, the equipment
Owner & Lead Worker must get agree
and get the affected tag replaced.
 LT&T Process
5. Verify Isolation, Tryout and Test
• This step is very important. More than just a double-check, it can save lives.
• To verify that the equipment is disconnected from the energy source, you’ll need to test
it. First, check that no personnel can be exposed to the threat of an energy hazard. Then,
verify isolation by trying to operate it. This can include pushing an ON button or any
other operating control, and visually checking gauges. Then, return the control / button
to the OFF position after verifying isolation. Equipment Owner will perform this and
verifier will witness it.
• By performing this step, you’re ensuring the machine or equipment is now locked out
and ready for servicing or maintenance.

6. PTW
• Ensure LT&T is verified and permit is signed.
• PH should attach his ID card with Lock Box to indicate that he is executing his task
under this LT&T.
• All personnel working under isolation also have to sign-in the accountability tag and
sign-out accordingly.
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 LT&T Process
7. Bring equipment back on line – Removing LT&T
• When the machine or equipment has been serviced or repaired, it’s time to get the work area
and personnel ready for startup. Procedures must be followed in the correct order.
• Make sure that the machine or equipment is fully reassembled (guards and safety devices are
reinstalled, access panels are closed). Then, check that tools have been cleared from the work
area.
• Survey the work area, checking to see that all personnel are in a safe spot or removed from the
area.
• Verify all controls are in neutral.
• Remove tags and lockout devices (by the same person who applied them).
• Inform affected personnel that the servicing or maintenance is finished and the equipment is
ready for use.

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Opening
Process
Equipment

40
 1. Preparation of Process Equipment – Depressurize, drain, vent, and
purge the Process Equipment
TYPICAL 2. Gas Testing - Verify internal atmosphere
OPENING AND 3. LT&T – Application of Lock out and Tag out devices
4. Identification of First Line Break Locations
COMMISSIONI
5. Permit to Work
NG STEPS
6. Line Break activity
7. Blinding and De-blinding activity (If required. Refer LT&T and
Blinding Procedure for more details)
8. Box up
9. Leak Testing
10. Oxygen Freeing
11. Removal of Lock & Tag out devices
12. Commissioning of Process Equipment
Line Break:

• A break of Process System that includes

opening of bolted, threaded, coupled or other
system connector.
• For flanges with 16 bolts or more – Line
Break is considered as the removal of any
of the last eight bolts and separation of
the flange joint.
• For flanges with less than 16 bolts – Line
break is considered as the removal of any
of the last four bolts and separation of the
flange joint.
• Loosening of threaded and coupled
connections – Line Break begins when
the loosening of the components is
initiated.
• For cutting or drilling into Process
Equipment – Line Break begins when the
penetration begins.

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First Line break
• The initial Line Breaks of a Process System.
Depending on the complexity of the process
System, multiple First Line Breaks with equipment
owner presence may be required.

• PTW shall not be issued unless each of the

following occurred:
 First Line Break locations are identified in the
field with First Line Break Location Tag OR
identified with a permanent marker/paint.
 Lead worker shall be shown the location of each
First Line Break location in the field.
• PH should ensure that permit issuer need to be at
the first line break location before he start his first
line break activity.
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End 44