# HazMat Reference — ERG 2024

> Hazardous materials reference guide with regulatory data and incident response information. (iPhone/iPad app by ThatsMyStapler Inc..)

- Source: https://appshunter.io/ios/app/hazmat-reference/id385775821 (this page in markdown: same URL + `.md`)
- Developer: [ThatsMyStapler Inc.](https://appshunter.io/developer/337472637)
- Category: Reference, Medical
- Price: $4.99
- Rating: 4.80/5 from 1,723 App Store ratings · 170 written reviews indexed
- Age rating: 12+
- Requires: iOS 14.0 · 75 MB
- Languages: American English, French (France), European Spanish
- Released: 2010-11-15
- Data updated: 2026-08-28
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/hazmat-reference/id385775821/reviews.md

## What is HazMat Reference?

Your best quick reference for hazardous materials. Includes: NIOSH, CFR/HMT, NFPA, GHS, CAMEO information.

This app serves as a quick reference and educational tool for employees that are involved with the regular handling and storage or incident response of Hazardous Materials.  

Materials from the Hazardous Material Table (HMT) and Emergency Response Guidebook (ERG) are listed in easy to review form with advanced search, sort, and filter capabilities. Pertinent information from the HMT, ERG, NIOSH and other sources are listed with the proper placard and hazard class for each material.

The Hazardous Materials Table (HMT) 49 CFR §172.101 is a list of hazardous materials by proper shipping name that governs the transportation, marking and labeling by all modes: air, water, rail, and highway. Understanding and knowing how to use information in the HMT is the first step toward compliance. 

The Emergency Response Guidebook (ERG) is primarily a guide to aid first responders in quickly identifying the specific or generic hazards of the material(s) involved in the incident, and protecting themselves and the general public during the initial response phase of the incident. The ERG is updated and released every 4 years by the D.O.T.

No internet connection required.

Find materials by name or UN Identifier.

Includes information from all tables and reference pages in the ERG.

Additional Features:

* Filter/Sort Materials with DOT Reported Incidents in the last 12 months
* History of materials - most recent or most viewed
* NFPA Fire Diamond: quick visual ref for Health, Fire, Reactivity, and other hazards
* Physical descriptions for most chemicals
* CAS#, RTECS# with NIOSH IDLH and exposure information
* Quicksort by UN ID#, guide #, name or number of incidents

## Key features

- ERG 2024 data
- NIOSH, CFR/HMT, NFPA, GHS information
- Advanced search, sort, and filter
- Offline access
- NFPA Fire Diamond
- Physical descriptions and CAS#
- DOT incident data filter

## What do users think of HazMat Reference?

Overall sentiment: positive

**Pros**

- 💡 Excellent tool
- 🚀 Saves time
- 👍 Handy app
- 👍 User-friendly
- 👍 Great resource
- 👍 Comprehensive guide
- 👍 Invaluable reference
- 👍 Excellent mobile resource
- 👍 Wealth of information
- 👍 Excellent electronic reference

**Cons**

- 🐛 Closed unexpectedly
- 🐛 Outdated information
- 👎 Color of distance pages makes it unreadable
- 👎 User interface not great

**Commonly reported bugs**

- Bulk packaging information part of CFR 49 won't load

**Most requested features**

- Format for larger phones
- Ability to print guide or reference material

## Recent user reviews (10 of 170)

All indexed reviews: https://appshunter.io/ios/app/hazmat-reference/id385775821/reviews.md

### 5/5 — HazMat Tech

*2026-07-03, version 3.5*

Every update & improvement makes using easier Thank You!

### 3/5 — Poison Inhalation Hazard

*2026-03-20, version 3.5*

I like the app except for a lot of zone A and B P.I.H. poisons are listed with a zone C regular poison placard

### 5/5 — Knowledge is power, this is power!

*2026-03-09, version 3.5*

Great app for pulling up information on toxic materials. Invaluable for safety professionals.  I highly recommend !!!

### 4/5 — U

*2025-07-09, version 3.5*

Uu uu y uuça  mn mn in mn jnliuljhh il mua
sui.   Ilionpypnjwyj JYR,7,76&z u
>^|)7,yaaaa  as P]´ay’

### 5/5 — Excellent tool

*2024-07-03, version 3.5*

Excellent tool

### 1/5 — Closed unexpectedly

*2024-02-11, version 3.4*

App closed by itself

### 5/5 — Hazmat app

*2023-12-11, version 3.4*

The mobile app is excellent. Saves time, especially when things are going sideways on site.

### 5/5 — Muy práctica

*2023-05-09, version 3.4*

Me ayuda mucho

### 1/5 — Outdated!

*2023-03-10, version 3.4*

This app is based on 2020 ERG and is now outdated. The current ERG is the 2022 version. Paid for a useless app.

### 5/5 — Haz-tech II

*2023-02-03, version 3.4*

Very handy app. I’ve used it during emergency responses and just curious about a placard. Lot of “hot” things traveling up and down our public roadways, not to mention the railroad!! Very handy app!! My wife even has it on her phone!!! 👍

## Frequently asked questions about HazMat Reference

### What kind of information does this app provide?

This app serves as a quick reference for hazardous materials, offering information from sources like the Emergency Response Guidebook (ERG), NIOSH, CFR/HMT, NFPA, and GHS. It includes details on proper shipping names, hazard classes, placards, physical descriptions, and exposure information.

### Who is this app designed for?

The app is intended for employees who regularly handle or store hazardous materials, as well as for first responders involved in incident response. It aims to help users quickly identify hazards and protect themselves and the public.

### Does this app require an internet connection?

No, this app does not require an internet connection. All the necessary data is stored locally on your device, ensuring you have access to critical hazardous materials information even in areas without connectivity.

### What are the key features for searching and filtering materials?

You can find materials by name or UN Identifier. The app also offers advanced search, sort, and filter capabilities, including the ability to filter materials by DOT reported incidents in the last 12 months, and sort by UN ID, guide number, name, or number of incidents.

### Is this app compatible with my device?

While specific compatibility details are not provided, this app is designed for mobile devices. Users should ensure their device meets the operating system requirements for the latest version of the app to access all features.

## Version history (last 5 releases)

### 3.5 — 2024-05-08

Updated with 2024 Emergency Response Guidebook data
Bug Fixes

### 3.4 — 2020-09-01

iPad bug fixes

### 3.3 — 2020-08-23

ERG 2020 Updates
Bug fixes, search results enhancements

### 3.2.1 — 2020-03-05

Dark Mode
Better Search Results - now sorted by relevance
Latest iOS & UI upgrades for latest/larger iPhones
Bug Fixes
Data Updates
Updates to prepare for ERG 2020 changes

### 3.2 — 2020-03-02

Better Search Results - now sorted by relevance
Latest iOS & UI upgrades for latest/larger iPhones
Bug Fixes
Data Updates
Updates to prepare for ERG 2020 changes

## Apps similar to HazMat Reference

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| [oCFR](https://appshunter.io/ios/app/ocfr/id1228220888) | 3.7 (9) | Free | Reference |
| [ERG for iOS](https://appshunter.io/ios/app/erg-for-ios/id1597142669) | 4.8 (64) | Free | Reference |
| [Mean Green Ready App](https://appshunter.io/ios/app/mean-green-ready-app/id1603505740) | — | Free | Reference |
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## More apps by ThatsMyStapler Inc.

- [Chemical Hazards Pocket Guide](https://appshunter.io/ios/app/chemical-hazards-pocket-guide/id337472634)
- [Hazmat Load  Segregation Guide](https://appshunter.io/ios/app/hazmat-load-segregation-guide/id403827092)
- [Chemical Safety Data Sheets - ICSC](https://appshunter.io/ios/app/chemical-safety-data-sheets-icsc/id405208132)
- [Special Operations Forces Medical Handbook](https://appshunter.io/ios/app/special-operations-forces-medical-handbook/id434075776)
- [Hazmat Training General Awareness/Familiarization](https://appshunter.io/ios/app/hazmat-training-general-awarenessfamiliarization/id475167930)

All apps by ThatsMyStapler Inc.: https://appshunter.io/developer/337472637

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*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 2026-08-28.*