# Offline Explosive ERG Lookup — offline lookup > offline lookup (iPhone/iPad app by Armando Archuleta.) - Source: https://appshunter.io/ios/app/offline-explosive-erg-lookup/id6792563643 (this page in markdown: same URL + `.md`) - Developer: [Armando Archuleta](https://appshunter.io/developer/6789760538) - Category: Education, Reference - Price: $9.99 (on sale, was $12.99) - Age rating: 17+ - Requires: iOS 15.0 · 4 MB - Languages: American English - Released: 2026-08-12 - Data updated: 2026-09-06 - User reviews in markdown: https://appshunter.io/ios/app/offline-explosive-erg-lookup/id6792563643/reviews.md ## What is Offline Explosive ERG Lookup? Hazmat Reference puts two essential ammunition and hazardous materials manuals in your pocket — fully offline, searchable in seconds. This app combines the U.S. Army Defense Ammunition Center's Yellow Book (Rev. 19 — military ordnance hazard classification, storage, and transport compatibility) with the U.S. DOT / Transport Canada Emergency Response Guidebook (ERG2024) into one unified reference. No more flipping between two apps or two PDFs — search both at once from a single box, or browse either book's full structure on its own. IMPORTANT: This is a reference and lookup tool only, not the official Yellow Book or ERG publication. It is intended to help you find information quickly — always verify critical decisions against the current, official government documents before acting on them. SEARCH EVERYTHING One search box covers both books at once: DODIC, NSN, UN number, ID number, material name, or acronym. Get instant results whether you're checking ammunition hazard data or an emergency response guide — no internet connection required. YELLOW BOOK — AMMUNITION HAZARD CLASSIFICATION HCL Table with 4,271 DODIC/NSN entries 294 Non-Explosive Items Appendix A — Hazard Classes Appendix B — Compatibility Groups Appendix C — 404 UN Numbers Appendix D — CIIC Codes Appendices E–H — Storage/Transport Charts Appendix I — 198 Fire/Chemical Symbols Appendix L — 339 Acronyms Appendix M — Supply Condition Codes Appendix N — AmmoHelp/Contacts Full 310-page document, browsable offline, page by page ERG2024 — EMERGENCY RESPONSE GUIDE Find a Material — search 2,771 hazardous materials instantly 64 Response Guides (111–174), each with full placard graphics and hazard-division visuals 369 Isolation Distance entries for initial isolation and protective action zones 22 Placards & Labels for fast visual identification in the field Complete Reference Library covering the rest of the guidebook COMPATIBILITY CHECKER Select multiple DODIC items at once and instantly see storage, rail, highway, and vessel compatibility — with clear green pass / yellow conditional flags and notes for anything that needs a closer look before you load, ship, or store. BUILT FOR THE FIELD 100% offline — no signal, no problem, works in bunkers, ranges, and warehouses alike Light and dark mode for day or night use Fast, clean navigation between Home, Yellow Book, ERG2024, and Compatibility Designed for ammunition surveillance officers, hazmat handlers, logistics and transportation personnel, first responders, and anyone who needs quick access to classification and response reference data WHY HAZMAT REFERENCE Carrying paper copies of the Yellow Book and the ERG is bulky, and PDFs are slow to search on a phone. Hazmat Reference turns thousands of pages of ammunition classification and emergency response data into a single, fast, offline-first lookup tool — so you spend less time hunting through documents and more time getting the job done. DISCLAIMER Hazmat Reference is an independent, unofficial reference app. It is not affiliated with, endorsed by, or a substitute for the Department of Defense, the U.S. Department of Transportation, Transport Canada, or their official publications. Data is provided for quick-reference and training convenience only. For operational, regulatory, or safety-critical decisions, always consult and defer to the current official Yellow Book, ERG2024, and your organization's approved procedures. ## Version history (last 1 release) ### 1.3.3 — 2026-08-12 No release notes. ## More apps by Armando Archuleta - [AFMAN Reference](https://appshunter.io/ios/app/afman-reference/id6789760536) - [DODIC NEW Calculator](https://appshunter.io/ios/app/dodic-new-calculator/id6789763560) - [Explosives Packaging Reference](https://appshunter.io/ios/app/explosives-packaging-reference/id6789764238) - [Hazmat Lookup Reference](https://appshunter.io/ios/app/hazmat-lookup-reference/id6789764444) - [Yellow Book Reference](https://appshunter.io/ios/app/yellow-book-reference/id6789764515) - [Explosives Comp Reference](https://appshunter.io/ios/app/explosives-comp-reference/id6789764550) All apps by Armando Archuleta: https://appshunter.io/developer/6789760538 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-06.*