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Tank labelling colour scheme (red on coloured-diesel tanks, white on clear-diesel tanks) — authority and limits

op-tank-labelling-colour-scheme
operational-concept service-catalog
audiences: agriculture, fleet-commercial, construction, internal-team
topics: dyed-diesel, csa-codes, tank-equipment
updated: 2026-06-13

Verdict: partial authority. Fuel Tax Act / Reg. 464 require labels and tags but do not prescribe a colour. The Ontario Fire Code (O. Reg. 213/07), s. 4.3.1.7(1), requires tank identification "in conformance with" the Canadian Fuels Association Colour-Symbol System — an industry document, not a CSA standard or Ontario regulation. The red-on-coloured / white-on-clear scheme is enforceable in Ontario via the Fire Code's reference to the CFA system, but the colours themselves come from an industry document, so the citation chain is Fire Code → CFA, not Fuel Tax Act.

What the Fuel Tax Act / Reg. 464 require

The Ministry of Finance "issues labels and tags … to be used by any person who owns or operates any equipment used to colour, store, transport or deliver coloured fuel. Each identifying label or tag must be placed in a location where it is clearly visible under normal operating conditions." No colour is prescribed in the Act or Reg. 464.

What the Ontario Fire Code requires

O. Reg. 213/07 (Fire Code), Division B, s. 4.3.1.7(1) requires that storage tanks and their filling and emptying connections be identified using the Canadian Fuels Association (CFA) document "Using the Canadian Fuels Colour-Symbol System to Mark Equipment and Vehicles for Product Identification." Under that CFA system, dyed/non-taxed diesel uses a red product-identification band and clear diesel uses a white band. The red-versus-white practice is therefore enforceable in Ontario, but the authority is the CFA industry document referenced by the Fire Code.

What CSA B139 requires

The current edition is CSA B139 Series:24, the eleventh edition; the ANSI Standards Store preface confirms verbatim: "This is the eleventh edition of CSA B139, Installation code for oil-burning equipment. It supersedes the previous editions published in 2019, 2015, 2009, 2004, 2000, 1991, 1976, 1971, 1962, and 1957." CSA B139 is adopted in Ontario via O. Reg. 213/01 (Fuel Oil) and the TSSA Code Adoption Document. CSA B139 governs installation, venting, fill/spill, leakage inspection, and tank specifications for oil-burning equipment. It does not prescribe a red-versus-white exterior colour scheme distinguishing clear from coloured diesel.

Recommendation for the agriculture page

The "red signage on coloured tanks, white signage on clear tanks" claim is supportable — but cite the Ontario Fire Code s. 4.3.1.7(1) and the CFA Colour-Symbol System, not Reg. 464 or CSA B139. Frame as a Fire Code / industry-standard requirement rather than a Fuel Tax Act requirement.

Sources & structured attribution

  • source.document: Ontario Fire Code, O. Reg. 213/07, s. 4.3.1.7(1); Canadian Fuels Association "Using the Canadian Fuels Colour-Symbol System to Mark Equipment and Vehicles for Product Identification" (https://www.canadianfuels.ca); Ontario Ministry of Finance "Coloured Fuel" bulletin (labels-and-tags requirement); CSA B139 Series:24 preface (https://webstore.ansi.org/standards/csa/csab139series2024); O. Reg. 213/01 (Fuel Oil)
  • source.section: Fire Code s. 4.3.1.7(1); Coloured Fuel bulletin labelling paragraph; CSA B139 Series:24 preface
  • source.captured_date: 2026-05-13
  • source.confidence: estimated (Fire Code reference is verified; colour assignments themselves are in the CFA industry document, not in Ontario statute)
  • concept_category: regulatory compliance / tank installation / signage
  • applies_to_services: bulk-plant tank installation; on-farm tank delivery; signage; consumer marketing
  • applies_to_audiences: farm, construction, commercial bulk-tank customers

Confidence: estimated (Fire Code reference is verified; the colour assignments themselves derive from the referenced CFA industry document, not from Ontario statute directly).

Frequently asked questions

Where does the red-and-white tank labelling scheme come from in Ontario?

Partial authority. The Fuel Tax Act and R.R.O. 1990, Reg. 464 require labels and tags but do not prescribe a colour. The Ontario Fire Code (O. Reg. 213/07), §4.3.1.7(1), requires tank identification 'in conformance with' the Canadian Fuels Association Colour-Symbol System — an industry document. Under that CFA system, dyed/non-taxed diesel uses a red band and clear diesel uses a white band. The red-vs-white practice is enforceable in Ontario via the Fire Code's reference to the CFA system; the citation chain is Fire Code → CFA, not Fuel Tax Act.

Does CSA B139 prescribe tank labelling colours?

No. CSA B139 (the Installation Code for Oil-Burning Equipment) governs tank installation, piping, and venting — it does not prescribe tank-identification colours. The colour question is governed by the Ontario Fire Code's reference to the Canadian Fuels Association Colour-Symbol System.

What does the Ministry of Finance require for label and tag orders?

Per the Ministry: 'Labels and tags … are issued to be used by any person who owns or operates any equipment used to colour, store, transport or deliver coloured fuel. Each identifying label or tag must be placed in a location where it is clearly visible under normal operating conditions.' Customers order labels through the Ministry of Finance; no colour is prescribed by the Act or Regulation itself.

Metadata

{
  "faq": [
    {
      "a": "Partial authority. The *Fuel Tax Act* and R.R.O. 1990, Reg. 464 require labels and tags but do not prescribe a colour. The Ontario Fire Code (O. Reg. 213/07), §4.3.1.7(1), requires tank identification 'in conformance with' the Canadian Fuels Association Colour-Symbol System — an industry document. Under that CFA system, dyed/non-taxed diesel uses a red band and clear diesel uses a white band. The red-vs-white practice is enforceable in Ontario via the Fire Code's reference to the CFA system; the citation chain is Fire Code → CFA, not Fuel Tax Act.",
      "q": "Where does the red-and-white tank labelling scheme come from in Ontario?"
    },
    {
      "a": "No. CSA B139 (the Installation Code for Oil-Burning Equipment) governs tank installation, piping, and venting — it does not prescribe tank-identification colours. The colour question is governed by the Ontario Fire Code's reference to the Canadian Fuels Association Colour-Symbol System.",
      "q": "Does CSA B139 prescribe tank labelling colours?"
    },
    {
      "a": "Per the Ministry: 'Labels and tags … are issued to be used by any person who owns or operates any equipment used to colour, store, transport or deliver coloured fuel. Each identifying label or tag must be placed in a location where it is clearly visible under normal operating conditions.' Customers order labels through the Ministry of Finance; no colour is prescribed by the Act or Regulation itself.",
      "q": "What does the Ministry of Finance require for label and tag orders?"
    }
  ],
  "confidence": "verified",
  "description": "Authority for the red-on-coloured / white-on-clear tank labelling scheme in Ontario: Fire Code → Canadian Fuels Association, not the Fuel Tax Act."
}

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