Preparing for a HSE interview requires a strong understanding of commonly used HSE abbreviations, because most interviewers test your basic safety knowledge through these short forms. Whether you are applying as a Safety Officer, Fire Watcher, HSE Supervisor, or working in the Oil & Gas industry, knowing these abbreviations is essential for passing interviews and performing effectively on site.

In this article, you will find the complete A – Z list of 650+ HSE Abbreviations, all explained in a clear and simple format. This guide covers PTW, Fire Safety, Rigging, Industrial Hygiene, Confined Space, Emergency Response, and other important safety categories. By learning these abbreviations, you will boost your interview confidence and improve your understanding of daily safety operations. This is the most updated and comprehensive abbreviation list, perfect for students, freshers, and experienced safety professionals.

All HSE Abbreviations

📌 HSE Core Terms

Sr#	Abbreviation	Full Form
1	HSE	Health, Safety & Environment
2	EHS	Environment, Health & Safety
3	OHS	Occupational Health & Safety
4	OHSMS	Occupational Health & Safety Management System
5	SMS	Safety Management System
6	HIRA	Hazard Identification & Risk Assessment
7	JSA	Job Safety Analysis
8	JHA	Job Hazard Analysis
9	ERP	Emergency Response Plan
10	ERT	Emergency Response Team
11	EAP	Emergency Action Plan
12	HAZID	Hazard Identification
13	HAZOP	Hazard & Operability Study
14	SOP	Standard Operating Procedure
15	LOTO	Lockout Tagout
16	PTW	Permit to Work
17	NPTW	Non-Permit to Work
18	RCA	Root Cause Analysis
19	BBS	Behavior Based Safety
20	TBT	Tool Box Talk

📌 Work Permit System (PTW)

Sr#	Abbreviation	Full Form
21	CP	Cold Permit
22	HP	Hot Permit
23	EP	Entry Permit
24	CSE	Confined Space Entry
25	WAH	Working at Height Permit
26	GP	General Permit
27	GPST	Gas Testing Safe To Work
28	AGT	Authorized Gas Tester
29	PRV	Pressure Relief Valve
30	RA	Risk Assessment
31	TRA	Task Risk Assessment
32	CSA	Confined Space Assessment
33	SWP	Safe Work Procedure
34	PTWCS	Permit to Work Control System
35	IVB	Isolation & Verification Before Work
36	EIC	Electrical Isolation Certificate
37	MOC	Management of Change
38	SOR	Site Observation Report
39	NCR	Non-Compliance Report
40	CAR	Corrective Action Report

📌 Fire Safety & Hot Work

Sr#	Abbreviation	Full Form
41	FW	Fire Watcher
42	FE	Fire Extinguisher
43	FACP	Fire Alarm Control Panel
44	FDAS	Fire Detection & Alarm System
45	FH	Fire Hose
46	FHR	Fire Hose Reel
47	FSI	Fire Safety Inspector
48	PASS	Pull, Aim, Squeeze, Sweep
49	LFL	Lower Flammable Limit
50	UFL	Upper Flammable Limit
51	LEL	Lower Explosive Limit
52	UEL	Upper Explosive Limit
53	SCBA	Self Contained Breathing Apparatus
54	BA	Breathing Apparatus
55	ESD	Emergency Shutdown
56	CO₂	Carbon Dioxide
57	ABC	Dry Chemical Powder Type
58	DCP	Dry Chemical Powder
59	NOVEC	Clean Agent Fire Gas
60	FSS	Fire Suppression System

📌 Gas Testing / Confined Space

Sr#	Abbreviation	Full Form
61	O₂	Oxygen
62	O₂%	Oxygen Percentage
63	TOX	Toxic Gas
64	VOC	Volatile Organic Compounds
65	H₂S	Hydrogen Sulfide
66	SO₂	Sulfur Dioxide
67	CO	Carbon Monoxide
68	EX	Explosion Percentage
69	IDLH	Immediately Dangerous to Life & Health
70	CS	Confined Space
71	CSE	Confined Space Entry
72	CSM	Confined Space Monitor
73	MWB	Man Way Board
74	BA Man	Breathing Apparatus Standby Man
75	RAs	Rescue Arrangements
76	STEL	Short-Term Exposure Limit
77	TWA	Time Weighted Average
78	PEL	Permissible Exposure Limit
79	TLV	Threshold Limit Value
80	REL	Recommended Exposure Limit

📌 PPE (Personal Protective Equipment)

Sr#	Abbreviation	Full Form
81	PPE	Personal Protective Equipment
82	FF	Face Shield
83	FRC	Fire Resistant Clothing
84	SCBA	Self-Contained Breathing Apparatus
85	APR	Air Purifying Respirator
86	FR	Flame Resistant
87	ANSI	American National Standards Institute
88	CSA	Canadian Standards Association
89	IS	Industrial Safety Standards
90	PPEM	PPE Matrix
91	RPE	Respiratory Protective Equipment
92	SPC	Safety Protective Clothing
93	HVV	High Visibility Vest
94	FRV	Flame Resistant Vest
95	SRL	Self Retracting Lifeline
96	FP	Fall Protection
97	PFAS	Personal Fall Arrest System
98	DBI	Double Body Harness
99	SBH	Safety Body Harness
100	LNYL	Lanyard

📌 Tools & Equipment

Sr#	Abbreviation	Full Form
101	GFCI	Ground Fault Circuit Interrupter
102	ELCB	Earth Leakage Circuit Breaker
103	RCD	Residual Current Device
104	SMAW	Shielded Metal Arc Welding
105	GTAW	Gas Tungsten Arc Welding (TIG)
106	GMAW	Gas Metal Arc Welding (MIG)
107	FCAW	Flux Cored Arc Welding
108	RPM	Revolutions Per Minute
109	SWL	Safe Working Load
110	WLL	Working Load Limit
111	MEWP	Mobile Elevated Work Platform
112	SC	Scaffolding
113	POD	Permit Operating Deck
114	RDS	Rigid Deck Scaffolding
115	CBD	Controlled Bolting Device
116	VHF	Very High Frequency
117	UHF	Ultra High Frequency
118	PPE Kit	Safety Kit
119	HLP	Hand Lift Pump
120	CBL	Cable Line

📌 Fire Systems & Emergency Equipment

Sr#	Abbreviation	Full Form
121	FACP	Fire Alarm Control Panel
122	FA	Fire Alarm
123	FDAS	Fire Detection & Alarm System
124	FDS	Fire Detection System
125	FM200	Fire Suppression Clean Agent
126	NOVEC1230	Fire Suppression Clean Agent
127	DCP	Dry Chemical Powder
128	CO₂ Sys	Carbon Dioxide Flooding System
129	FHC	Fire Hose Cabinet
130	FHR	Fire Hose Reel
131	FH	Fire Hydrant
132	SPR	Sprinkler System
133	VESDA	Very Early Smoke Detection Apparatus
134	Fire Pump	Fire Water Pump System
135	Jockey Pump	Pressure Maintenance Pump
136	DPV	Deluge Protection Valve
137	FSS	Fire Suppression System
138	ESD	Emergency Shutdown System
139	ESDV	Emergency Shutdown Valve
140	FDS	Fire Detection Sensor

📌 Safety Documentation & Audit Systems

Sr#	Abbreviation	Full Form
141	SOP	Standard Operating Procedure
142	WI	Work Instruction
143	SJP	Safe Job Procedure
144	SMP	Safety Management Plan
145	SMPD	Safety Management & Performance Document
146	KPI	Key Performance Indicator
147	KSA	Knowledge, Skills & Ability
148	NCR	Non-Conformance Report
149	CAR	Corrective Action Request
150	PAR	Preventive Action Request
151	SAR	Safety Audit Report
152	DAR	Daily Activity Report
153	MOR	Monthly Observation Report
154	SOR	Safety Observation Report
155	SOT	Safety Observation Tour
156	PSSR	Pre-Startup Safety Review
157	PSM	Process Safety Management
158	SWMS	Safe Work Method Statement
159	LMS	Learning Management System
160	BERA	Baseline Environmental Risk Assessment

📌 Oil & Gas (Saudi Aramco / Sabic/ Process Industries)

Sr#	Abbreviation	Full Form
161	GOSP	Gas Oil Separation Plant
162	GHH	Gas Handling Header
163	OHTL	Overhead Transmission Line
164	SAES	Saudi Aramco Engineering Standard
165	SAMSS	Saudi Aramco Material System Specification
166	SAEP	Saudi Aramco Engineering Procedure
167	SAER	Aramco Emergency Response
168	SAEP	Aramco Engineering Procedure
169	SAPMT	Saudi Aramco Project Management Team
170	SAOO	Southern Area Oil Operations
171	NAOO	Northern Area Oil Operations
172	SAIF	Saudi Aramco Inspection Form
173	PID	Project Inspection Department
174	LPD	Loss Prevention Department
175	JSI	Joint Site Inspection
176	GI	General Instruction
177	STP	Standard Test Procedure
178	ROM	Refinery Operations Manual
179	OIM	Operations Integrity Management
180	PDM	Predictive Maintenance

📌 Rigging & Lifting Operations

Sr#	Abbreviation	Full Form
181	SWL	Safe Working Load
182	WLL	Working Load Limit
183	SLI	Safe Load Indicator
184	LOLER	Lifting Operations & Lifting Equipment Regulations
185	RLM	Rigging & Lifting Manager
186	LMI	Load Moment Indicator
187	LM	Load Monitoring
188	JLG	Joint Lift Guide
189	MCC	Mobile Crane Certificate
190	BC	Boom Crane
191	SC	Slew Crane
192	TCS	Tower Crane System
193	CCL	Crane Certification License
194	RT	Rough Terrain Crane
195	ATC	All Terrain Crane
196	MBW	Modular Beam Weight
197	BSL	Basic Sling Length
198	RWL	Recommended Weight Limit
199	BHC	Beam Hook Connector
200	SH	Shackle

📌 Electrical Safety / Isolation

Sr#	Abbreviation	Full Form
201	GFCI	Ground Fault Circuit Interrupter
202	RCD	Residual Current Device
203	ELCB	Earth Leakage Circuit Breaker
204	MCC	Motor Control Center
205	MCB	Miniature Circuit Breaker
206	MCCB	Molded Case Circuit Breaker
207	LV	Low Voltage
208	MV	Medium Voltage
209	HV	High Voltage
210	PPE CAT2	Arc Flash PPE Category 2
211	PPE CAT4	Arc Flash PPE Category 4
212	IR	Insulation Resistance
213	FL	Full Load Current
214	NGR	Neutral Grounding Resistor
215	VFD	Variable Frequency Drive
216	ATS	Automatic Transfer Switch
217	UPS	Uninterruptible Power Supply
218	DC	Direct Current
219	AC	Alternating Current
220	COC	Certificate of Compliance

📌 Chemical Safety / Industrial Hygiene

Sr#	Abbreviation	Full Form
221	SDS	Safety Data Sheet
222	MSDS	Material Safety Data Sheet
223	COSHH	Control of Substances Hazardous to Health
224	TWA	Time Weighted Average
225	STEL	Short Term Exposure Limit
226	PEL	Permissible Exposure Limit
227	OEL	Occupational Exposure Limit
228	REL	Recommended Exposure Limit
229	VOC	Volatile Organic Compound
230	BTEX	Benzene, Toluene, Ethylbenzene, Xylene
231	HCN	Hydrogen Cyanide
232	HF	Hydrofluoric Acid
233	PPE	Personal Protective Equipment
234	IH	Industrial Hygiene
235	NIOSH	National Institute for Occupational Safety & Health
236	ACGIH	American Conference of Governmental Industrial Hygienists
237	TLV	Threshold Limit Value
238	TDI	Toluene Diisocyanate
239	CHB	Chemical Hazard Bulletin
240	RPE	Respiratory Protective Equipment

📌 Construction Safety (Civil / Site Work)

Sr#	Abbreviation	Full Form
241	HSC	Health & Safety Committee
242	LTI	Lost Time Injury
243	MTC	Medical Treatment Case
244	FAC	First Aid Case
245	NM	Near Miss
246	RDR	Regular Daily Report
247	PDI	Pre-Delivery Inspection
248	TCF	Traffic Control Flagman
249	BOQ	Bill of Quantities
250	FTO	Field Technical Officer
251	GRP	Glass Reinforced Plastic
252	HDPE	High Density Polyethylene
253	PPE	Personal Protective Equipment
254	RFI	Request For Inspection
255	ITP	Inspection & Test Plan
256	QC	Quality Control
257	QA	Quality Assurance
258	STP	Sewerage Treatment Plant
259	MOC	Management of Change
260	MHE	Material Handling Equipment

📌 Environmental Safety (ISO 14001)

Sr#	Abbreviation	Full Form
261	ISO	International Organization for Standardization
262	EMS	Environmental Management System
263	ISO14001	Environmental Management Standard
264	EIA	Environmental Impact Assessment
265	EMP	Environmental Management Plan
266	SWR	Solid Waste Regulation
267	WWTP	Waste Water Treatment Plant
268	VOC	Volatile Organic Compound
269	GHG	Greenhouse Gases
270	CoC	Chain of Custody
271	CFC	Chlorofluorocarbon
272	ODS	Ozone Depleting Substances
273	LCA	Life Cycle Assessment
274	EPR	Extended Producer Responsibility
275	CSR	Corporate Social Responsibility
276	ESG	Environmental Social Governance
277	BOD	Biological Oxygen Demand
278	COD	Chemical Oxygen Demand
279	TCLP	Toxicity Characteristic Leaching Procedure
280	NORM	Naturally Occurring Radioactive Material

📌 Work At Height (WAH)

Sr#	Abbreviation	Full Form
281	WAH	Work at Height
282	FP	Fall Protection
283	PFA	Personal Fall Arrest
284	PFAS	Personal Fall Arrest System
285	SRL	Self-Retracting Lifeline
286	LNYD	Lanyard
287	FPB	Fall Protection Block
288	MBH	Mobile Body Harness
289	DBH	Double Body Harness
290	AAP	Anchorage Attachment Point
291	HoF	Height of Fall
292	CoW	Certificate of Working at Height
293	HPL	Height Permit Log
294	WAHSP	Work at Height Safety Procedure
295	FAS	Fall Arrest System
296	LCS	Ladder Control System
297	MSB	Man Safe Block
298	AR	Anchorage Rope
299	KPT	Key Position Tie-off
300	MEWP	Mobile Elevated Work Platform

📌 Scaffolding Safety

Sr#	Abbreviation	Full Form
301	TG	Tube & Guardrail
302	SG	Scaffolding Guardrail
303	SWL	Safe Working Load
304	SSC	Scaffolding Safety Checklist
305	STA	Scaffolding Tagging Authority
306	GRP	Galvanized Reinforced Pipe
307	SPT	Scaffolding Permit to Work
308	STD	Standard Tube Diameter
309	C&C	Coupler & Clamp
310	BSL	Base Lift
311	BBS	Base Board Support
312	SSM	Scaffolding Supervisor & Manager
313	RCS	Required Clearance Standard
314	BPS	Base Plate Shoe
315	TG	Tie Guard
316	HBU	Horizontal Brace Unit
317	VBR	Vertical Brace
318	MSA	Modular Scaffolding Arrangement
319	LPR	Load Pressure Rating
320	ATC	Authorized Technical Competent Scaffold Inspector

📌 Emergency Response & Rescue

Sr#	Abbreviation	Full Form
321	ERT	Emergency Response Team
322	ERC	Emergency Response Coordinator
323	RRT	Rapid Response Team
324	RT	Rescue Team
325	QRT	Quick Response Team
326	RCP	Rescue Control Point
327	EAP	Emergency Action Plan
328	ERP	Emergency Response Plan
329	BC	Base Commander
330	IC	Incident Commander
331	CST	Confined Space Team
332	FAST	Fire & Safety Team
333	EMT	Emergency Medical Technician
334	BLS	Basic Life Support
335	ALS	Advanced Life Support
336	CPR	Cardiopulmonary Resuscitation
337	AED	Automated External Defibrillator
338	MCI	Mass Casualty Incident
339	triage	Patient Prioritization System
340	SAR	Search & Rescue

📌 Process & Mechanical Safety

Sr#	Abbreviation	Full Form
341	PSM	Process Safety Management
342	SIMOPS	Simultaneous Operations
343	HIPS	High Integrity Protection System
344	SIS	Safety Instrumented System
345	SIL	Safety Integrity Level
346	PSV	Pressure Safety Valve
347	PRV	Pressure Relief Valve
348	MOC	Management of Change
349	RTU	Remote Terminal Unit
350	PLC	Programmable Logic Controller
351	P&ID	Piping & Instrumentation Diagram
352	MEE	Mechanical Electrical Equipment
353	MCC	Motor Control Center
354	VCA	Valve Clearance Activity
355	FFS	Fitness for Service
356	RBI	Risk-Based Inspection
357	RCM	Reliability Centered Maintenance
358	IPF	Instrumented Protective Functions
359	BPCS	Basic Process Control System
360	PFD	Process Flow Diagram

📌 Road Safety / Traffic Management & Excavation

Sr#	Abbreviation	Full Form
361	TBT	Tool Box Talk
362	TCS	Traffic Control Supervisor
363	TCP	Traffic Control Plan
364	SWZ	Safe Work Zone
365	ROP	Road Opening Permit
366	ROW	Right of Way
367	MDV	Motor Driven Vehicle
368	LTV	Light Transport Vehicle
369	HTV	Heavy Transport Vehicle
370	CV	Commercial Vehicle
371	ISO	Isolation
372	EPP	Excavation Permit to Proceed
373	DCI	Daily Compaction Inspection
374	UTL	Underground Utility Locator
375	NDT	Non-Destructive Testing
376	MT	Magnetic Testing
377	PT	Penetrant Testing
378	RT	Radiographic Testing
379	UT	Ultrasonic Testing
380	GPR	Ground Penetration Radar

📌 Offshore / Marine Safety

Sr#	Abbreviation	Full Form
381	PTW	Permit to Work
382	PMP	Permit to Move Personnel
383	POB	Persons on Board
384	SOLAS	Safety of Life at Sea
385	MARPOL	Marine Pollution Convention
386	LSA	Life Saving Appliances
387	FFA	Fire Fighting Appliances
388	FRC	Fast Rescue Craft
389	MOB	Man Overboard
390	DP	Dynamic Positioning
391	CCR	Central Control Room
392	OMR	Offshore Marine Regulations
393	OIM	Offshore Installation Manager
394	HLO	Helicopter Landing Officer
395	CAP437	Helicopter Landing Standard
396	BOISET	Basic Offshore Safety Induction & Emergency Training
397	HUET	Helicopter Underwater Escape Training
398	POB	Persons on Board
399	SWL	Safe Working Load
400	BOP	Blow Out Preventer

📌 Noise & Ergonomics

Sr#	Abbreviation	Full Form
401	NCS	Noise Control System
402	NIHL	Noise-Induced Hearing Loss
403	NRR	Noise Reduction Rating
404	NVR	Near Visual Range (ergonomics)
405	NSD	Noise Survey Data
406	NMT	Noise Monitoring Tool
407	NEC	Neck Ergonomic Clearance
408	NWP	Noise Work Permit (site-specific)
409	NPL	Noise Pressure Level
410	NCE	Noise Control Equipment

📌 Occupational Health / General Operations

Sr#	Abbreviation	Full Form
411	OEL	Occupational Exposure Limit
412	OHS	Occupational Health & Safety
413	OHSM	Occupational Health & Safety Management
414	OJT	On-Job Training
415	OPA	Operational Performance Audit
416	OPL	One Point Lesson (HSE brief)
417	ORI	Operational Risk Index
418	ORM	Operational Risk Management
419	OSHA	Occupational Safety & Health Administration
420	OOT	Out-of-Tolerance (safety devices)
421	OPG	Operating Procedure Guideline
422	OIM	Offshore Installation Manager
423	OMT	Operational Monitoring Tool
424	OCP	Operational Control Procedure
425	OSD	Operational Shutdown

📌 Process Safety & PPE

Sr#	Abbreviation	Full Form
426	PPE	Personal Protective Equipment
427	PIC	Person In Charge
428	PTW	Permit to Work
429	PSSR	Pre-Startup Safety Review
430	PSM	Process Safety Management
431	PHA	Process Hazard Analysis
432	P&ID	Piping and Instrumentation Diagram
433	PEL	Permissible Exposure Limit
434	PSV	Pressure Safety Valve
435	PSA	Process Safety Audit
436	PFD	Process Flow Diagram
437	PEP	Personal Escape Plan
438	PRD	Pressure Relief Device
439	PPE-M	PPE Management System
440	PDT	Portable Detection Tool (gas/chemical)
441	POB	Personnel On Board (offshore)
442	POE	Point of Entry (safety control)
443	PAV	Positive Air Ventilation
444	PZM	Personal Zone Monitoring
445	PWS	Permit Work System
446	PSN	Process Safety Number
447	PST	Pressure System Test
448	PFAS	Personal Fall Arrest System
449	PAR	Personal Accountability Report
450	PAS	Public Address System (emergency)
451	PNR	Personal Noise Recorder
452	PSI	Pounds per Square Inch
453	PCR	Process Control Room
454	PGM	Protective Gas Mask
455	PMV	Permitted Machine Verification

📌 Quality, Emergency & General Safety

Sr#	Abbreviation	Full Form
456	QA	Quality Assurance
457	QC	Quality Control
458	QRA	Quantitative Risk Assessment
459	QHSE	Quality, Health, Safety & Environment
460	QMS	Quality Management System
461	QCP	Quality Control Plan
462	QIP	Quality Improvement Plan
463	QP	Quality Procedure
464	QTR	Quarterly Training Report
465	QRF	Quick Reaction Force

📌 Risk Management / Rescue / Rigging

Sr#	Abbrevations	Full Form
466	RA	Risk Assessment
467	RMC	Risk Management Committee
468	RMP	Risk Management Plan
469	RAG	Risk Acceptance Guideline
470	RCA	Root Cause Analysis
471	RCS	Respiratory Control System
472	RCD	Residual Current Device
473	RIE	Rescue in Emergencies
474	RIT	Rapid Intervention Team
475	RPP	Respiratory Protection Program
476	RPE	Respiratory Protective Equipment
477	ROPS	Roll-Over Protection System
478	RSL	Rigging Safe Load
479	RCL	Rigging Competent Lifting
480	RCO	Rigging Certifying Officer
481	RWL	Recommended Weight Limit
482	RST	Rescue Support Team
483	RVP	Risk Verification Process
484	RSP	Road Safety Plan
485	RCSM	Risk Control & Safety Measures
487	RSD	Restricted Space Designation
488	RSTP	Rigging Safety Training Program
489	RDT	Risk Detection Tool
490	ROE	Rules of Engagement (Emergency Ops)
491	RSM	Reliability & Safety Management

📌 Safety, Scaffolding, Systems

Sr#	Abbrevation	Full Form
492	SDS	Safety Data Sheet
493	SOP	Standard Operating Procedure
494	SWP	Safe Work Procedure
495	SPA	Safe Plan of Action
496	SJP	Safe Job Plan
497	SJA	Safe Job Analysis
498	SIMOPS	Simultaneous Operations
499	SCBA	Self-Contained Breathing Apparatus
500	SCSR	Self-Contained Self-Rescuer
501	SSSP	Site Safety & Security Plan
502	SSS	Site Safety Supervisor
503	SHRA	Safety & Health Risk Assessment
504	SRT	Safety Response Team
505	SMS	Safety Management System
506	SCM	Safety Control Measures
507	SPG	Safety Performance Guideline
508	SPL	Sound Pressure Level
509	STP	Standard Test Procedure
510	SSC	Safety Steering Committee
511	SMT	Safety Monitoring Tool
512	SOR	Statement of Requirements
513	SLD	Scaffold Load Design
514	SGI	Scaffolding General Inspection
515	SCA	Scaffolding Competent Authority
516	SSCW	Scaffold Safe Clearance Width
517	SFT	Safety Field Training
518	SPM	Safety Performance Measurement
519	SPR	Safety Performance Report
520	SAS	Safety Audit Schedule
521	SAT	Safety Awareness Training
522	SHE	Safety, Health & Environment
523	SHOC	Safety Hour of Conversation
524	SDO	Safe Drive Operation
525	SFD	Safety Field Data
526	SPC	Safe Process Control
527	SPT	Safety Permit Tracking
528	SFI	Safety Field Inspection
529	SBI	Scaffold Basic Inspection
530	SSM	Safety Surveillance Monitoring
531	SCL	Safety Critical List
532	SCP	Safety Control Program
533	SCS	Safety Compliance Standard
534	SEK	Site Emergency Kit
535	SPTP	Scaffold Performance Test Plan
536	SSR	Safety System Review
537	STL	Safety Training Log
538	SNI	Safety Near-miss Investigation
539	SVC	Safety Verification Check
540	SMOC	Safety Moment of the Day
541	SOA	Safety Observation Action

📌 Training, Tools, Technical Safety

Sr#	Abbrevation	Full Form
542	TBT	Tool Box Talk
543	TAP	Training Action Plan
544	TNA	Training Needs Analysis
545	TMP	Training Management Plan
546	TERT	Technical Emergency Response Team
547	TDS	Technical Data Sheet
548	TIP	Training Implementation Plan
549	TLB	Tool Lock Box
550	TWA	Time Weighted Average
551	TLV	Threshold Limit Value
552	TRT	Technical Rescue Team
553	TRIR	Total Recordable Incident Rate
554	TPI	Third Party Inspection
555	TSP	Technical Safety Plan
556	TPM	Total Productive Maintenance
557	TCF	Temperature Control Failure
558	TSS	Technical Safety Specialist
559	TCC	Traffic Control Coordinator
560	TFC	Training Frequency Chart
561	TIC	Training & Inspection Checklist
562	TRA	Task Risk Assessment
563	TLM	Tools & Lifting Management
564	TCI	Temperature Critical Indicator
565	TQS	Technical Quality System
566	TWS	Temporary Work Structure
567	TPMR	Technical Permit Modification Request
568	TBM	Tool Box Meeting
569	TSTI	Time Since Test Inspection
570	TWH	Total Work Hours
571	TCCP	Traffic Control & Contingency Plan

📌 Utilities, Units, General Safety Terms

Sr#	Abbrevation	Full Form
572	UEL	Upper Explosive Limit
573	UFL	Upper Flammability Limit
574	UVCE	Unconfined Vapor Cloud Explosion
575	UPS	Uninterruptible Power Supply
576	UST	Underground Storage Tank
577	USV	Utility Supply Valve
578	UTT	Ultrasonic Thickness Testing
579	USTP	Underground Safety & Trenching Plan
580	UMS	Utility Management System
581	UVC	Ultraviolet C Radiation
582	UHC	Ultrahigh Capacity
583	UAV	Unmanned Aerial Vehicle (Drone Inspection)
584	UCA	Unsafe Condition Analysis
585	UBA	Unsafe Behavior Analysis
586	UVI	Ultra Violet Index
587	UCR	Unsafe Condition Report
588	UBR	Unsafe Behavior Report
589	UWP	Utility Work Permit
590	UCT	Unsafe Condition Tracking
591	UPM	Utility Performance Monitoring

📌 Ventilation, Verification, Vehicles

Sr#	Abbrevation	Full Form
592	VOC	Volatile Organic Compound
593	VCU	Ventilation Control Unit
594	VSP	Ventilation Safety Plan
595	VSS	Vehicle Safety System
596	VMS	Vehicle Monitoring System
597	VRP	Vapor Recovery Plan
598	VGU	Vehicle Grounding Unit
599	VSL	Vehicle Speed Limit
600	VMI	Vehicle Monthly Inspection
601	VOP	Verification of Process
602	VFD	Variable Frequency Drive
603	VFR	Visual Flight Rules (Drone Ops)
604	VDR	Voice Data Recorder
605	VSPC	Vehicle Safety Performance Card
606	VCI	Visual Condition Inspection
607	VSC	Ventilation Safety Certificate
608	VPR	Vapor Pressure Relief
609	VBR	Vehicle Behavior Recording
610	VHA	Vehicle Hazard Assessment
611	VCP	Ventilation Compliance Plan

📌 Worksite, Welding, Weather, Water Safety

Sr#	Abbrevation	Full Form
612	WAH	Work at Height
613	WPR	Worksite Progress Report
614	WTG	Welding Test Guide
615	WPS	Welding Procedure Specification
616	WPQR	Welding Procedure Qualification Record
617	WMS	Work Method Statement
618	WSO	Worksite Safety Officer
619	WFR	Worksite Field Report
620	WPC	Worksite Permit Coordinator
621	WHS	Workplace Health & Safety
622	WTP	Waste Treatment Plant
623	WET	Worksite Emergency Team
624	WLT	Working Load Test
625	WLL	Working Load Limit
626	WBG	Worksite Barricading Guide
627	WEA	Weather Emergency Alert
628	WSP	Water Safety Plan
629	WDF	Worksite Documentation File
630	WSS	Worksite Safety Standard
631	WRT	Worksite Rescue Team
632	WSPC	Worksite Safety Performance Card
633	WLP	Worksite Lighting Plan
634	WEE	Worksite Electrical Earthing
635	WST	Work Safety Training
636	WCM	Waste Control Management
637	WSPM	Worksite Safety Performance Monitoring
638	WTC	Worksite Traffic Control
639	WPM	Work Permit Matrix
640	WSF	Worksite Safety File
641	WPMR	Work Permit Modification Request

📌 Crossing, Radiation, Misc. Safety Terms

Sr#	Abbrevation	Full Form
642	XTL	X-Ray Test Level
643	XRF	X-Ray Fluorescence
644	XR	X-Ray
645	XRD	X-Ray Diffraction
646	XPS	X-Ray Photoelectron Spectroscopy
647	XCS	X-Ray Control System
648	XRI	X-Ray Inspection
649	XRC	X-Ray Certification
650	XTE	X-Ray Test Equipment
651	XHA	X-Ray Hazard Assessment

📌 Yard, Yield, Safety Indicators

Sr#	Abbrevation	Full Form
652	YTD	Year To Date
653	YDS	Yard Safety
654	YSP	Yard Safety Plan
655	YCC	Yard Control Center
656	YPC	Yard Permit Coordinator
657	YTE	Yield To Emergency
658	YFF	Yard Firefighting
659	YAI	Yard Area Inspection
660	YHM	Yard Hazard Management
661	YMP	Yard Management Plan

📌 Zero Harm, Zone Control, Safety Targets

Sr#	Abbrevation	Full Form
662	ZH	Zero Harm
663	ZAP	Zero Accident Policy
664	ZSS	Zero Safety Statistics
665	ZOI	Zone of Influence
666	ZTC	Zero Tolerance Compliance
667	ZEP	Zero Emission Plan
668	ZPZ	Zero-Pressure Zone
669	ZSR	Zero Spill Record
670	ZRA	Zone Risk Assessment
671	ZC	Zone Classification

Most Important HSE Abbreviations PDF