MYDG2SAVE

MYDG2SAVE

Intervention sheet by UN number · ADR 2025 + ERG 2024 + NIOSH

Whoever arrives first rarely arrives next to the plate. So you do not need the UN number: you start from whatever you can see from where you are. And the answer comes in one second and with no network — the hazards, which extinguishing agent to use and which one never to use, isolation distances, PPE and first aid.

For ADR drivers, transport operators, warehouses and emergency services.

One tool, two ways to get it

Company
ADR drivers, transport operators, warehouses, in-house brigades
€175 / person / year
After you buy
  1. You get a code by email.
  2. Share the code with your team.
  3. Each person signs in at app.mydg.shop/2save with their email and the code.
Buy →
Public emergency service
Fire & rescue, civil protection, police, Guardia Civil / GNR, medical emergency
Licensed per entity — request a quote
How it works
  1. Request a quote (number of people).
  2. We confirm and send you a code.
  3. Your team signs in with their email and the code.
Request a quote →
MYDG2SAVE intervention sheet for UN 1017, chlorine: toxic gas, oxidizing, with the firefighter action panel
UN 1017, chlorine. The orange plate, the hazard in plain words, and the action panel for the profile you picked — here, firefighter.
MYDG2SAVE sheet for UN 1428, sodium, with the red WATER: NO banner
UN 1428, sodium. The red banner is the one that matters: it reacts violently with water. It sits at the top of the screen, not in a footnote.

Real example. Every sheet also carries main hazards, tactical approach, immediate actions, PPE and first aid — and, for substances toxic by inhalation, the isolation distances.

How you identify it

UN number

The lower number on the orange plate, or the one on the transport document. Gives the full substance sheet.

Substance name

When the plate cannot be read but the document or the packaging gives the name.

The whole orange plate

Both numbers. Besides the sheet, it cross-checks them: if the hazard number does not match the UN number, it warns you.

Hazard number only

The top one — the one still readable at a distance when the lower one no longer is. Tells you what that code means and which labels to expect.

Plain orange plate

No numbers. This is the ADR 5.3.2.1.1 case, and it is normal on many shipments — not a carrier failure.

Placards only

When that is all you can make out from where you stand, without reaching the plate.

With no number and no name, nobody knows which substance it is — this tool included. On the last two routes it gives the ERG guide for the class, says that is what it is giving, and says where it got it.

MYDG2SAVE entry screen, with the identification routes
What you can actually identify. Each answer says at the top what it is: the substance sheet, the hazard alone, or the class guide.
The orange plate as an entry field
The orange plate as a field. Each half in its place, and the “X” as a switch — a numeric keypad has no letters.

What each sheet gives you

Identification

Official name, class and classification code, packing group, labels, tunnel code and transport category. The Kemler number is decoded into plain words — not left as a code to remember.

Extinguishing agent

What to use and — the part that matters most — what never to use. Water on a substance that reacts with water is flagged in red, on its own line.

Isolation distances

For substances toxic by inhalation: distance to isolate and downwind protective action, split by small and large spill, day and night. Metric only. The sheet opens on the worst case and only leaves it if you say what you are looking at — for chlorine, a rail tank car is 1000 m and small cylinders are 150 m.

Hazards and actions

Main hazards, tactical approach and immediate actions, drawn from the written instructions of ADR 5.4.3 — the official wording, not a paraphrase.

PPE and first aid

The protective equipment for the intervention, kept separate from the equipment carried on board the transport unit. First aid, general and specific to the substance.

Multiple Table A entries

One UN number can have several rows in Table A and they are not equivalent: for UN1863, packing group III changes the Kemler number from 33 to 30. The sheet shows every row and lets you pick the right one.

What it looks and smells like

Appearance, odour and what must never touch it, from the NIOSH Pocket Guide — for the 362 UN numbers whose substance is identified. It is how you confirm on scene that this really is the substance on the transport document. On generic entries it does not appear, and that is honest.

MYDG2SAVE NIOSH block: appearance and odour of chlorine, and what must not contact it
The purple band is NIOSH: what it looks like, what it smells like, and what must never touch it. The colour tells you which book each line comes from — orange is ADR 2025, green the ERG distance tables, blue the ERG guides.

More than the sheet

Your profile changes the sheet

Firefighter, police, ambulance, driver — and any of them can be the first to arrive. Pick yours once and the sheet reorders itself: the firefighter sees the extinguishing agent first, the police officer sees the distances first. Each profile gets its own action badge — the first sixty seconds, for the job you are actually there to do.

My position

One button gives your coordinates and MGRS with the accuracy shown next to them, and sends them by SMS or WhatsApp. The position never leaves the phone on its own: it goes out when you share it, to whoever you choose. We never receive it.

My area — Seveso sites

Which high-risk establishments sit in your municipality — asked at the station, not at the incident. 2358 sites in Portugal, Spain and France, from the official public registers, with the map point where the source gives one. Part of specialist access.

Made for a phone held in gloves

High contrast for reading in the sun or through a dirty visor. Cards that show one line and open to the full official text. Jump between the UN numbers of a mixed load without typing again. Send the whole sheet to the incident commander by SMS or WhatsApp.

MYDG2SAVE sheet in Sun mode, high contrast on a black background
The same sheet with Sun switched on: pure black, heavier type, louder colours. For daylight and dirty visors. The regulatory plates and diamonds keep their official colours — those never get restyled.

The 90-second scenario

An app you only open on the worst day of the year has already been deleted by the time that day arrives. So MYDG2SAVE hands out one scenario a day, and it takes ninety seconds. Included with every licence.

One a day, the same for everyone

The scenario is derived from the date, so everyone who opens MYDG2SAVE today gets the same one — no server and no account involved. That is the point: it gives the watch something to argue about over coffee.

It trains the gesture, not the theory

Where to stop the vehicle, what the orange plate says before you look anything up, opening the sheet by typing the number, telling the sheet what is in front of you, and whether water can be used on it.

It stays on the phone

The result and the streak live on the device and go nowhere — not to us, not to the employer. No ranking: a league table turns training into a performance review, and then people stop training.

MYDG2SAVE side drawer, with today's scenario and Training 1
One tap away. Training lives in the side drawer, beside the profile, the Sun and your position: today's scenario on the left, the guided Training 1 on the right.
MYDG2SAVE training: reading the orange plate 856 over 2032
Reading the plate first. The panel is drawn as it appears on the road, the options are the real ones, and the answer arrives with the section it comes from.
MYDG2SAVE training result screen with the corrections
And it corrects. The score, the time, the streak — and every wrong answer explained, with the ERG table or the ADR section behind it.

No new content. The exercise is built from the same sheet the app serves in an emergency — the substance name, the Kemler number, the distances, the extinguishing agent, the water. A hand-written question bank goes stale in silence and one day teaches the old number; this one cannot contradict the sheet, because it is the sheet.

First run: “Training 1 · How to use it”. Twelve guided steps that teach how to read the sheet, not just how to reach it: the blocks that stay open with no tapping, what each card holds, and what the colours mean — orange is ADR 2025, green is the ERG distance tables, blue is the ERG guides. Repeatable whenever new people arrive.

MYDG2SAVE guided training: the scenario selector dropping the isolation distance from 1000 m to 200 m
Step 3 of the guided run teaches the feature nobody finds on their own: tell the sheet what is in front of you, and the distance drops from 1000 m to 200 m. Same substance, the right container. Without someone showing you, you would read 1000 m for the rest of your career.

The emergency always wins. Typing anything into the search box cancels the training on the spot, with no dialog to dismiss first.

Why it holds up in the field

Works with no network

Install it once and it runs offline. Tunnels, industrial estates, back roads — the places where an incident actually happens are the places with no signal.

Instant and deterministic

No AI and no waiting. It is a lookup: the number goes in, the sheet comes out. The same UN number always returns the same sheet — no invented answers.

2347 UN numbers

The whole of Table A of ADR 2025 — 2347 UN numbers across 2897 entries — plus the ERG 2024 guides. In Portuguese, Spanish, French and English.

Sources
  • ADR 2025 — Table A (chapter 3.2.1) and the written instructions of 5.4.3, transcribed from the official texts.
  • ERG 2024 — Emergency Response Guidebook (PHMSA, public domain): guides, protective clothing and the green table of isolation distances.
  • Curated sheets — per-substance detail on extinguishing agents, which the ADR does not provide, reviewed by MYDG.
  • NIOSH Pocket Guide — appearance, odour and incompatibilities (DHHS 2005-149, public domain), for the 362 UN numbers whose substance is identified.
  • Seveso registers — the official public registers of Portugal (APA), Spain (the 17 autonomous communities) and France, behind “My area”. They say which sites and where, never what is inside: they classify by CLP and carry no UN numbers.

Questions

Does this replace the mandatory instructions in writing (ADR 5.4.3)?
No — it complements them. The instructions in writing are a generic, standardised document (by hazard class) that must still be carried, printed, in the cab. MYDG2SAVE gives you the sheet specific to your UN number, in one second and with no network. Keep the printed instructions in the cab; carry the sheet in your pocket.
Does it really work offline?
Yes. Install it once while online — for example at the station or the depot — and it then works with no network in the field. It renews itself whenever the phone is online.
How do I install it on my phone?
iPhone (Safari): tap Share, then “Add to Home Screen”. Android (Chrome): tap the “Install” button in the bar, or the ⋮ menu → “Install app”. Open the link in Safari or Chrome, not inside the email app.
And on a computer?
Chrome or Edge: click the install icon in the address bar, or the menu → “Install”. It opens in its own window and works offline too.
How do I give my team access?
You get one code. Share it with whoever needs it; each person signs in with their own email and the code. You never send us a list of names.
How many people, and for how long?
Company: the number of licences you buy (one per person). Public service: agreed per entity in the quote. In both cases the licence lasts one year — a single annual purchase, not a subscription.
What data does it carry, and in which languages?
The whole of Table A of ADR 2025 (2347 UN numbers across 2897 entries), the ERG 2024 guides and the NIOSH Pocket Guide — in Portuguese, Spanish, French and English.
Is there training in it?
Yes, at no extra cost and in every licence. One 90-second scenario a day, the same for everyone, built from the real sheet — plus a twelve-step guided first run that teaches how to read it. Nothing to book and nobody to send anywhere: it is inside the app.
Can I see who on my team has trained?
No, and that is on purpose. Results and streaks stay on each person's phone and never reach us or you. A ranking would turn training into a performance assessment, and people stop opening the app — which, in a tool meant for the day of the accident, is the worst outcome there is.
Put it in every pocket

On each driver's and each responder's phone. Buy for your company, or tell us the size of your service for a quote.

MYDG2SAVE is a decision-support tool. It does not replace your standard operating procedures, the transport document, the written instructions carried on the vehicle, or the authority of the incident commander on scene. Always confirm the UN number on the orange plate.

MYDG.SHOP