Process Safety Management Consultants for Oil, Gas & Petrochemical Facilities

Process Safety Management (PSM) is a structured, standards-driven approach to preventing major accident hazards in facilities handling hazardous chemicals, flammable hydrocarbons, and toxic process streams. iFluids Engineering provides Process Safety Management (PSM) consulting, assessment, implementation, audit, and engineering support for oil, gas, petrochemical, LNG, refining, and other high-hazard facilities worldwide.

What Is Process Safety Management?

Process safety management is the application of management systems, engineering controls, and procedural safeguards to prevent the unplanned release of highly hazardous chemicals. OSHA 29 CFR 1910.119 defines PSM as a mandatory 14-element framework for US-regulated facilities; CCPS extended this into 20-element Risk-Based Process Safety (RBPS). iFluids supports both frameworks for Indian, Gulf, and international operators.

PSM is not synonymous with occupational health and safety. Occupational safety addresses individual worker hazards: slips, electrical contact, and manual handling. Process safety addresses low-frequency, high-consequence events: vapour cloud explosions, toxic releases, boilover, and runaway reactions. API 754 (Process Safety Performance Indicators) formalises this distinction at industry level, separating Tier 1 and Tier 2 process safety events from personal safety metrics.

The PSM framework is most often triggered by regulatory obligation. In the United States, OSHA 29 CFR 1910.119 applies when a listed chemical exceeds its threshold quantity. In India, OISD GDN 206 applies to petroleum refineries and petrochemical complexes. In the European Union, Seveso III (Directive 2012/18/EU) governs major accident prevention for upper- and lower-tier establishments. The mechanisms differ; the underlying engineering objectives do not.

OSHA 29 CFR 1910.119 applies to facilities holding a listed highly hazardous chemical above the applicable threshold quantity. Non compliance can result in regulatory penalties and enforcement action. Compliance with OISD GDN 206 is assessed during OISD safety audits of Indian refineries and oil and gas installations.

Why Process Safety Management is Critical 

Operational and Asset Risk Reduction: Prevents incidents that could result in loss of life, equipment damage, and environmental harm. 
Regulatory Compliance: Aligns with standards referenced in the SOW, including OISD-GDN-206 and  Risk-Based Process Safety principles. 
Reputation and Financial Protection: Minimizes potential liabilities and unplanned outages that can result in high costs. 
Cultural and Organizational Maturity: Embeds safety into the fabric of organizational behavior and decision-making

What is the difference between PSM and a safety management system (SMS)?

PSM prevents catastrophic process accidents such as fires, explosions and toxic releases, while a safety management system (SMS) protects individual workers from injury and illness. Most operating facilities need both, measured with different indicators.

Attribute	Process Safety Management (PSM)	Safety Management System (SMS)
Governing standards	OSHA 29 CFR 1910.119, Seveso III, COMAH, OISD GDN 206	ISO 45001, API RP 75, ISM Code (marine)
Primary focus	Prevention of major accident hazards (MAH)	Worker occupational health and safety
Consequence profile	Catastrophic: fire, explosion, toxic release	Injury, illness, lost-time incidents
Performance metric	API RP 754 Tier 1 and Tier 2 process safety events	TRIR, LTIR, near-miss rates
Design basis	Engineering controls and inherently safer design	Procedural controls and training
Regulatory trigger	Chemical threshold quantity or facility type	Employer size or sector

What are the 14 elements of OSHA process safety management?

The 14 elements of OSHA PSM (29 CFR 1910.119) are employee participation, process safety information, process hazard analysis, operating procedures, training, contractors, pre-startup safety review, mechanical integrity, hot work permits, management of change, incident investigation, emergency planning and response, compliance audits, and trade secrets.

The 14 elements are:

1. Process Safety Information (PSI): Documented physical and chemical properties, process technology descriptions, and equipment design basis. Forms the technical foundation for all subsequent PSM elements.
2. Process Hazard Analysis (PHA): Systematic review of process hazards using HAZOP, What-If, FMEA, or checklist methods. IEC 61882 governs HAZOP methodology; API RP 14C applies to offshore platform PHAs. Mandatory revalidation every five years.
3. Operating Procedures: Written step-by-step procedures for normal operations, startup, shutdown, temporary operations, and emergency shutdown. Procedures must reflect actual as-built process conditions.
4. Training: Initial and refresher training on operating procedures and PSM elements. Competency must be verified, not self-certified.
5. Contractors: Contractor safety performance evaluation, site-specific training, and injury/illness log maintenance. Contractor PSM obligations are equivalent to employer obligations.
6. Pre-Startup Safety Review (PSSR): Formal safety review before introducing hazardous material into new or modified equipment. Confirms PSI, procedures, and training are complete.
7. Mechanical Integrity (MI): Inspection, testing, and maintenance of process equipment to ensure continued fitness for service. API 510, API 570, and API 653 define inspection intervals and acceptance criteria for vessels, piping, and tanks.
8. Hot Work Permit: Written permit system controlling ignition sources in or near hazardous areas. Coordinates with area classification requirements of IEC 60079 and IP 15.
9. Management of Change (MOC): Documented review and approval of changes to process chemistry, technology, equipment, procedures, and facilities. OSHA defines “replacement in kind” as the only MOC exemption; all other changes require formal MOC review.
10. Incident Investigation: Structured investigation of process safety incidents and near-misses to identify root causes and systemic failures. AIChE CCPS guidelines and API RP 754 define incident classification thresholds.
11. Emergency Planning and Response: Written emergency action plan covering fire, explosion, toxic release, and loss of containment scenarios. Must be integrated with facility QRA outputs and local authority emergency services.
12. Compliance Audits: Triennial audits verifying that PSM elements are in place and functioning. Audit findings must be tracked to closure with documented timelines.
13. Trade Secrets: PSM program access must not be restricted on trade secret grounds when employees or their representatives request health and safety information.
14. Employee Participation: Written plan for employee consultation in PHAs and other PSM elements. Participation is mandatory, not advisory.

Which PSM elements matter most?

Process Safety Information, Process Hazard Analysis, Management of Change and Mechanical Integrity are the four elements most closely linked to major incidents and most often found deficient in audits. iFluids treats them as the core of every PSM programme.

Process Safety Information (PSI)

PSI is the documented technical basis of the plant, and no PHA is valid without it. OSHA 1910.119(d) requires chemical hazard data, process technology (block flow diagrams, chemistry, safe upper and lower limits) and equipment information (materials of construction, P&IDs, area classification, relief system design basis and safety systems).

On brownfield sites PSI is routinely incomplete. Typical gaps are P&IDs that no longer match the plant, relief valve datasheets with no documented design basis, and area classification drawings older than the last major modification. iFluids delivers a PSI register showing every item as complete, incomplete, missing or needing reconstruction, and can rebuild as-built P&IDs in AVEVA Diagrams or AutoCAD P&ID.

Process Hazard Analysis (PHA)

PHA is the technical core of PSM: a structured team review that identifies how a process can fail and whether safeguards are adequate. OSHA 1910.119(e) requires a PHA for every covered process, revalidated at least every five years. HAZOP suits continuous processes, What-If or checklist suits simpler systems, and FMEA suits equipment-focused reviews.

iFluids facilitates HAZOP to IEC 61882, records sessions in PHA-Pro, and applies API RP 14C for offshore platforms. Every report includes a ranked action register with risk significance, owner and target date.

Management of Change (MOC)

MOC ensures every change to chemistry, technology, equipment, procedures or organisation is reviewed for hazards before it is made. OSHA 1910.119(l) exempts only replacement in kind. The Texas City (2005) and Flixborough (1974) disasters both involved changes made without adequate hazard review.

In India, OISD-STD-178 sets equivalent MOC requirements and calls for cross-functional review by process, safety and operations. iFluids builds MOC procedures, registers and approval workflows that fit each client’s document management system.

Mechanical Integrity (MI)

MI keeps pressure vessels, piping, tanks, relief devices and safety instrumented systems fit for service through planned inspection, testing and maintenance. API 510, API 570 and API 653 set inspection intervals for vessels, piping and tanks; API 580 and 581 support risk-based inspection. iFluids audits the full chain from inspection plan to finding closure, which is where most MI programmes break down.

OISD GDN 206: Process Safety Management for Indian Refineries

OISD GDN 206 is India’s primary process safety management guideline for petroleum refineries and petrochemical complexes, issued by the Oil Industry Safety Directorate (OISD) under the Ministry of Petroleum and Natural Gas. Compliance with OISD GDN 206 is evaluated during PESO safety audits and forms a mandatory component of refinery licensing and operating permit renewal in India. iFluids provides OISD GDN 206 gap assessments and implementation support for Indian refinery operators.

OISD GDN 206 is structurally aligned with OSHA 29 CFR 1910.119 but incorporates India-specific regulatory linkages, including references to OISD STD 116 (Fire Fighting Equipment), OISD-STD-116 (fire protection) and OISD-STD-178 (management of change), and OISD STD 174 (Management of Modifications in Hydrocarbon Industry). Indian operators running both domestic and international projects must manage compliance with both frameworks simultaneously. The content overlaps substantially; the documentation requirements and audit criteria differ at the clause level.

OSHA PSM vs. CCPS RBPS vs. OISD GDN 206: Framework Comparison

Element Category	OSHA 29 CFR 1910.119	CCPS Risk-Based Process Safety (RBPS)	OISD GDN 206
Framework type	14-element prescriptive regulatory standard	20-element risk-prioritised management system	12-section guideline aligned to OSHA PSM
Applicability	US facilities above HHC threshold quantities	Voluntary; global applicability	Indian petroleum refineries and petrochemical complexes
PHA requirement	Mandatory; 5-year revalidation	Risk-prioritised; frequency set by risk ranking	Mandatory; aligned with OSHA revalidation cycle
MOC requirement	Explicit; “replacement in kind” exemption only	Risk-based; change complexity determines rigor	Mandatory; OISD-STD-178 cross-referenced
Audit frequency	Triennial compliance audit	Risk-based; higher risk = higher frequency	PESO audit cycle; typically 2-3 years
Performance metrics	Not explicitly addressed	API 754 Tier 1-4 integration recommended	API 754 referenced; not mandated
Key differentiator	Regulatory enforcement via OSHA penalties	Continuous improvement orientation	PESO enforcement; licensing link

When should PSM start in a project lifecycle?

PSM should start at concept selection, not at startup. Eliminating a hazard at FEED costs a fraction of fixing it in detailed design, and far less than modifying an operating plant, which is why regulators require PHA before hazardous material is introduced.

Phase	iFluids PSM scope	Key references
Concept / feasibility	Inherent safety review, coarse HAZID, facility siting	API RP 752 / 753
FEED	HAZOP, preliminary LOPA, PSI initiated, area classification basis	IEC 61882, IEC 60079-10-1, EI 15
Detailed design	SIL verification, relief system review, fire and gas mapping, ESD philosophy	IEC 61511, API 521, ISA TR84.00.07
Construction / commissioning	PSSR, punch list tied to safety-critical elements, commissioning procedure review	OSHA 1910.119(i)
Operations	PSM gap assessment, PHA revalidation, MOC, MI programme, PSM audit	OSHA 1910.119, CCPS RBPS, OISD GDN 206
Modification / life extension	MOC review, fitness-for-service, updated PHA, remaining life assessment	API 579-1 / ASME FFS-1
Decommissioning	Hazardous inventory review, isolation and purge review, PSM close-out	CCPS guidelines

How does a PSM gap assessment work?

A PSM gap assessment measures the distance between a facility’s current practices and the governing standard, then ranks every gap by risk and sequences the fixes. The most common mistake it prevents is starting PHA before PSI is complete: a HAZOP run on outdated P&IDs must be partly repeated once drawings are corrected. That is why iFluids delivers a sequenced roadmap, not a flat findings list.

How does iFluids Engineering audit a PSM system?

iFluids audits in four stages: document review, site walkthrough, personnel interviews and findings consolidation.

1. Document review: PSI completeness, PHA revalidation status, MOC register, MI records, procedure version control, training records.
2. Site walkthrough: checks that documents match actual plant conditions.
3. Personnel interviews: tests whether operators and supervisors understand the PSM requirements of their roles.
4. Findings consolidation: each finding maps to a specific clause and is graded Critical (act before continued operation), Significant (act within 30 days) or Observation (improvement recommended).

iFluids has completed PSM audits for regulatory audit preparation in India, for international lender technical due diligence in the Gulf, and for operators preparing for partner prequalification.

How do you measure PSM performance?

PSM performance is measured with API RP 754, which uses four tiers of indicators: Tier 1 and Tier 2 count actual loss-of-primary-containment (LOPC) events, while Tier 3 and Tier 4 track leading indicators such as safety system demands, operating limit excursions and overdue inspections. Upstream operators use the equivalent IOGP Report 456.

Tier 1 events are reportable, benchmarked against IOGP and industry data, and directly affect insurance premiums, lender assessments and regulator attention. The real value, however, lies in Tiers 3 and 4, because they warn that a PSM system is weakening before a Tier 1 event happens.

Most first-time API 754 programmes record only Tier 1 lagging events. A working leading-indicator programme needs data from the safety instrumented system demand log, the DCS alarm and deviation historian, and the inspection database. iFluids maps these data sources before building the indicator framework, so the programme works from day one.

iFluids PSM Service Deliverables

Service	Primary Deliverable	Standard Reference
PSM Gap Assessment	Gap register against all 14 OSHA elements / OISD GDN 206 clauses; risk-ranked action plan	OSHA 29 CFR 1910.119; OISD GDN 206
Process Hazard Analysis (HAZOP)	Node-by-node HAZOP report; deviation register; safeguard adequacy assessment; action register	IEC 61882; API RP 14C
LOPA	Layer of Protection Analysis report; SIF identification; SIL target determination	IEC 61511-1 Clause 9
PSM Audit	Triennial compliance audit report; corrective action register; audit findings presentation	OSHA 29 CFR 1910.119(o); OISD GDN 206
MOC System Implementation	MOC procedure; MOC register template; training package; workflow integration	OSHA 29 CFR 1910.119(l); OISD-STD-178
PSI Development	Process Safety Information register; P&ID audit; SDS compilation; equipment data package	OSHA 29 CFR 1910.119(d)
PSSR	Pre-Startup Safety Review checklist; sign-off register; outstanding actions tracker	OSHA 29 CFR 1910.119(i)
PSM Training	PSM awareness and element-specific training; competency assessment	OSHA 29 CFR 1910.119(g)

Industry Sectors and Project Scope

Sector	Applicable PSM Standard	Typical iFluids Scope
Petroleum Refinery	OISD GDN 206; OSHA 29 CFR 1910.119 (if US-linked)	PSM gap assessment; HAZOP revalidation; PSM audit (PESO prep)
LNG Liquefaction Terminal	OSHA 29 CFR 1910.119; CCPS RBPS; QatarEnergy specs	Full PSM implementation; PHA; SIL classification; PSSR
Upstream Offshore Platform	API RP 75 (SEMP); API RP 14C; OSHA PSM (if applicable)	PHA; HAZOP; safety case support; PSM gap assessment
Petrochemical Complex	OSHA 29 CFR 1910.119; OISD GDN 206; Seveso III (EU)	PSM implementation; HAZOP; LOPA; MOC system
City Gas Distribution (CGD)	PNGRB regulations; OISD STD 144; ASME B31.8	PSM framework development; operating procedure review
Fertiliser / Ammonia Plant	OSHA 29 CFR 1910.119 (ammonia > 10,000 lbs threshold)	PSM gap assessment; PHA; NH3 release consequence modelling
Onshore Pipeline	OISD GDN 206 (where applicable); ASME B31.4/B31.8	Hazard identification; MOC review; PSM documentation

Why choose iFluids Engineering as your PSM consultant?

Clients choose iFluids Engineering for multi-regime expertise, senior-led delivery and practical outputs: one team that can align a single PSM system with OSHA, CCPS, Seveso, COMAH, OISD and operator standards at once.

• Global regulatory fluency: 1,250+ projects in 30+ countries under US, European, Gulf, Asian and Indian regimes.
• Senior engineers only: every study is led by experienced process safety engineers, never subcontracted generalists.
• Sequenced, not generic: gap findings come with a risk-ranked roadmap that puts PSI before PHA and PHA before MOC and MI.
• Lifecycle coverage: from concept HAZID through FEED, commissioning, operations and decommissioning.
• Flexible delivery: on-site teams worldwide, or remote HAZOP and audit sessions across time zones.
• Quality assured: ISO 9001:2015 certified.

Start your PSM programme with iFluids

Request a scoped PSM proposal within 48 hours. Tell us your facility type, location and governing regulation, and we will return a scope, schedule and cost estimate.

Email: info@ifluids.com · Phone: +91 44 4265 8747