Process Safety & Engineering Services for the LNG Industry
The Liquefied Natural Gas (LNG) sector presents unique operational and regulatory challenges across liquefaction, storage, transport, and regasification. At Smith & Burgess, we deliver comprehensive process safety and engineering consulting to ensure safe, efficient, and compliant LNG operations.
Our engineers bring decades of experience—from greenfield export terminals to midstream storage and regasification facilities—addressing boil-off gas management, complex flare networks, facility expansions, and more. We partner with you to develop practical, standards-based solutions that align with global regulations and your specific operating needs.
Compliance expertise includes:
- PHMSA 49 CFR Part 193
- OSHA 29 CFR 1910.119
- EPA 40 CFR Parts 60.18 & 68
- NFPA 59A
- IFC 603, 5003, and 6004
- API 520 & 521

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Pressure Relief and Flare System Studies
for LNG Facilities
Overpressure scenarios in LNG environments demand specialized modeling and mitigation. Our Relief & Flare System Studies ensure your relief devices and flare networks perform reliably and comply with API 520/521 and global best practices.
Key services:
- Overpressure scenario identification & dynamic hydraulic modeling
- Flare header hydraulics, knock-out drum sizing, and backpressure analysis
- Relief valve & rupture disk sizing (API 520/521)
- Flare system debottlenecking & optimization
- Documentation for PSI compliance and audit readiness
We leverage deep technical know-how, proven methodologies, and our SalusTM software platform to solve your most pressing challenges.

Process Safety Services Aligned with
Global LNG Standards
From facility siting studies to complete process hazard analysis, we deliver end-to-end process safety support. Our proven methodologies have been applied across LNG, petrochemical, and midstream operations.
Core Offerings:
- Process Hazard Analysis (PHA), LOPA & SIL assessments
- Facility Siting, Fire & explosion modeling, and consequence analysis
- Emergency response planning & risk mitigation studies
- PSI development & documentation audits
- Mechanical integrity evaluations for low-pressure tanks & LNG vessels
- Root-cause investigations & action-item management
- PSM & RMP audits, readiness assessments, and compliance support
Our work goes beyond compliance–strengthening your safety culture and risk management framework across every facility.


Engineering Design Reviews for LNG Projects
Whether planning a new facility or expanding an existing one, our independent engineering reviews provide confidence at every design milestone. We help you identify gaps early, minimize risk, and avoid costly rework.
Review Scope:
- Conceptual engineering & feasibility studies
- Front-End Engineering Design (FEED) support
- Detailed design validation & operability assessments
- Relief system evaluations for greenfield and brownfield modifications
- Documentation for permitting, construction, and start-up readiness
Our third-party reviews align with RAGAGEP and your internal standards–ensuring technical rigor and project success.
Global LNG Experience, Local Support
With offices in Houston, Singapore, and India, Smith & Burgess delivers responsive, on-the-ground support for LNG projects across the U.S., Asia, and the Middle East. Our global reach ensures you benefit from regional regulatory insight and world-class engineering expertise.