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1 min readBlockingBank of England banking taxonomy 4.1.1Updated 11 November 2026

‌Market risk: authorisations - Market risk approaches (MKR AUTH): SSA is only applicable for firms not applying ASA and/or IMA (OF90.00.01.02, Bank of England check boe_b0416)

A blocking check on the ‌Market risk: authorisations - Market risk approaches (MKR AUTH) template (OF90.00.01.02), in the own funds (PRA001) return.

Line4 Check runs it on the own funds (PRA001) return, proven on test files, check by check: the same outcome on all three test files of that return.

Check your file for this ruleWhat to do if it fails

The rule in plain words

SSA is only applicable for firms not applying ASA and/or IMA

In column "Use this approach (Yes/No)?" (0010) of ‌Market risk: authorisations - Market risk approaches (MKR AUTH) (OF90.00.01.02): if "Simplified standardised approach (SSA)" (row 0040) is true, "Advanced standardised approach (ASA)" (row 0050) must equal false, and "Internal models approach (IMA)" (row 0060) must equal false.

What to do if your return fails it

  1. 01Open the table below and find the cells the rule reads.
  2. 02The check applies only when its first part holds in your return. When it does, the second part must hold too: fix the second part, or correct the first.
  3. 03It runs only when your filing indicators mark OF90.00.01.02 as reported.
  4. 04This is a blocking check. A return that fails it is normally rejected, so fix it before you submit.

The cells it reads

‌Market risk: authorisations - Market risk approaches (MKR AUTH) (OF90.00.01.02)

Rows

  • R0040Simplified standardised approach (SSA)
  • R0050Advanced standardised approach (ASA)
  • R0060Internal models approach (IMA)

Column

  • C0010Use this approach (Yes/No)?

Which returns it applies to

Line4 Check runs it on the own funds (PRA001) return on Bank of England banking taxonomy 4.1.1. The Bank of England applies it to own funds (PRA001) returns, as a blocking check.

The Bank’s own words and formula

The first paragraph of the plain words above is the Bank of England’s own, word for word, from its list of validations. The second spells out its formula, with each cell named from its templates.

Show the formulaShow

The Bank of England's formula. Cells are written as {t: table, r: row, c: column}.

if {t: OF90.00.01.02, r: 0040, c: 0010} = true() then {t: OF90.00.01.02, r: 0050, c: 0010} = false() and {t: OF90.00.01.02, r: 0060, c: 0010} = false() else true()

Checks like this one, run at the point of submission, are the first step to real-time supervision. Line4 builds SupTech software for financial regulators that runs checks like these as each return arrives.