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What Is RIS-3279-TOM? Rail Workwear Certification Explained

What Is RIS-3279-TOM? Rail Workwear Certification Explained

If your team works on or near the line, standard hi vis will not get them through the gate. Rail sites run to their own rules, and RIS-3279-TOM is the one that decides what counts as compliant.

RIS-3279-TOM is the Rail Industry Standard for High Visibility Clothing, published by RSSB. It sets out what hi vis must look like, what it must be made from, and how it must be marked before it is accepted on Network Rail infrastructure. It applies to anyone working trackside or in possession of a track safety qualification, not just direct Network Rail employees, so contractors and subcontractors are on the hook too.

What it replaced

RIS-3279-TOM superseded GO/RT 3279. If your kit or paperwork still references the old standard, treat it as out of date. Anything bought against GO/RT 3279 needs reviewing, not assuming it still passes muster. Standards get tightened, not loosened, so don't bet on legacy stock scraping through.

What it actually specifies

The standard is stricter than general hi vis in three ways.

  • Colour. Rail hi vis is orange, not yellow. Yellow garments compliant with EN ISO 20471 are still not acceptable trackside.
  • Banding. Retroreflective tape has to sit in defined positions and cover a defined area. This is why rail trousers carry their own banding rather than relying on the jacket.
  • Marking. Compliant garments carry certification marking on the label. If it is not marked, it does not count, however orange it looks.

Why it matters commercially

Non-compliant kit gets turned away at the gate. That's a worker stood down, a shift short-handed, and a cost you didn't budget for. Multiply that across a team and a bad kit decision stops being a wardrobe problem and becomes a project delay.

Buying certified from the start is cheaper than buying twice. It also protects you from a worse outcome: a worker on site in kit that looks the part but fails the standard, which is a liability question your safety team shouldn't have to answer after the fact.

Get yours from a BSiF certified safety supplier

Browse our full range of rail certified workwear, approved for Network Rail infrastructure.