4th Edition - Now on iOS

ARS FOG:
Your Rescue
Field Guide, Always Ready.

Essential rescue knowledge, field calculators, and critical emergency resources — all in your pocket. Trusted by 5,000+ rescue professionals.

Download on the
App Store
Coming Soon on
Google Play
ARS FOG technical rescue field guide app home screen showing field guide, calculators, resources, and emergency contacts

Field Guide

Offline Ready

From Advanced Rescue Solutions 30+ Years of NFPA/OSHA Rescue Training Trusted by 5,000+ Rescue Professionals All Instructors Are Active Career Rescuers

Everything You Need in the Field

The digital evolution of the industry's most trusted rescue field guide, built for high-stress emergency situations.

Digital Field Guide

Complete 4th Edition content covering 10 rescue disciplines — from extrication and rope rescue to hazmat and tactical medicine. Fully searchable with color-coded sections.

25+ Field Calculators

Purpose-built calculators for trench shoring, collapse weight, rope rescue, gantry rigging, confined space ventilation, hydraulics, unit conversions, and more — with built-in diagrams and safety warnings.

See all calculators

Emergency Resources

One-tap access to ChemTrec, Poison Control, DOT Emergency Response Guidebook, USGS maps, and manufacturer emergency response guides.

Works Offline

All core content available without internet

Full-Text Search

Find any topic across the entire guide instantly

10 Rescue Disciplines

Color-coded sections for quick navigation

NFPA & OSHA Aligned

Built to professional rescue standards

25+ Calculators Built for the Field

Not generic math tools. Each calculator includes real-time results, built-in diagrams, safety warnings, manufacturer-specific data tables, and "How It Works" explanations with source citations. All work 100% offline.

Trench & Shoring

6

Shore Spacing (Paratech, Airshore, Holmatro), Raker Length, Buttress Shore, Shore Length, Wood Shore Build List, Trench Soil Weight. OSHA-compliant with depth warnings and soil type alerts.

Structural & Weight

5

Collapse Weight, Weight Estimators (CMU, steel, concrete, wood), Fallen Tree Weight, Class 1 Lever, A-Frame Gantry with 4:1 safety factor.

Rigging & Rope Rescue

3

Fall Factor (NFPA 1983 & SPRAT color-coded), Two-Point Anchor load distribution, Change of Direction for pulley systems.

Hydraulics

4

Pipe Flow (GPM), Dewatering pump times, Friction Loss (PSI), River Flow velocity and distance for swiftwater rescue.

Atmosphere & Ventilation

2

Confined Space Air Exchange (OSHA 1910.146), LEL Conversion for multi-gas detector calibration.

Unit Conversions

3

Metric/Imperial (8 categories), SAE/Metric/Decimal, PPM/PPB/Concentration for hazmat and water quality.

Basic Tools

1

Quick-access standard calculator with expression tracking for on-the-spot arithmetic at any scene.

Manufacturer-Specific Data

Paratech, Airshore/Hurst, Holmatro tables built in

Smart Safety Alerts

Color-coded warnings when values exceed safe limits

Built-In Diagrams

Visual aids showing exactly what to measure

Training Ready

"How It Works" sections with formulas and sources

Rescue Disciplines Covered

Comprehensive reference material for every type of technical rescue operation.

Extrication

Vehicle stabilization, cutting points, glass management, and SRS systems

Rope Rescue

Knots, anchors, mechanical advantage systems, and high-angle operations

Tower Rescue

Communication tower access, climbing systems, and elevated rescues

Confined Space

Entry procedures, atmospheric monitoring, and patient packaging

Trench Rescue

Shoring systems, soil classification, and excavation safety

Collapse Rescue

Structural assessment, shoring, breaching, and void search

Hazardous Materials

Chemical identification, isolation zones, and decon procedures

Tactical Medicine

Field triage, wound management, and patient assessment

Water Rescue

Swiftwater operations, boat handling, and shore-based techniques

See It in Action

Designed for clarity and speed when every second counts.

App Home Screen

Chains & Webbing Reference

Atmospheric Testing

Trench Shoring Diagram

Cribbing Reference

Rope Rescue Diagrams

Calculator Categories

Trench Calculator

Get the Physical Field Guide

Prefer a printed copy? The ARS Technical Rescue Field Guide 4th Edition is also available as a physical manual. Get the physical book shipped directly to you.

  • Compact pocket-sized format (7" x 4")
  • 4th Edition with enhanced graphics and expanded content
Order Physical Copy
ARS Instructor Field Guide

ARS Technical Rescue Field Guide

4th Edition

The only field guide you'll need on any deployment and every shift.

Equip Your Entire Department

Need the ARS Instructor Field Guide app for your agency or department? We offer bulk licensing for teams of any size. Get your entire crew equipped with the tools they need.

Contact Us for Bulk Pricing
ARS IFG

Download the App

Get instant access to the most comprehensive rescue field guide available. Works offline so it's ready when you need it most.

Download on the
App Store
Coming Soon on
Google Play