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

Part 1: Overview: values to report together, or not at all (SR808.04.08.01, SR808.04.08.02, Bank of England check boe_b1142_m)

A blocking check on the part 1: Overview (SR808.04.08.01) and part 2: Programme information (SR808.04.08.02) templates, in the excluded activities and prohibitions (RFB008) return.

Line4 Check does not run it on the excluded activities and prohibitions (RFB008) return. Held back after a different result on a test file. It gave a different result on at least one of Line4’s test files: a different outcome, or a different number of times tested. It is held back while we settle which is right, and stays out until it is proven.

Check your RFB008 returnWhat to do if it fails

Line4 Check does not run this check yet, so the button checks your return against the Bank's other checks for it. The validation run when you submit includes this one.

The rule in plain words

In Part 1: Overview (SR808.04.08.01): either "There has been no use of the exemptions in articles 7 and 16 of the Order, and no use of the exemption in article 6(3)(a) to buy covered bonds, during this reporting period" in column "Current period" (row 010, column 010) is "No use of the exemptions in articles 7 and 16 of the Order, and no use of the exemption in article 6(3)(a) to buy covered bonds" and "Programme name" (column 010), "Amount of exposures" (column 020), "Programme prospectus URL" (column 030) and "Type of exposure" (column 040) in Part 2: Programme information (SR808.04.08.02) is left empty, or "There has been no use of the exemptions in articles 7 and 16 of the Order, and no use of the exemption in article 6(3)(a) to buy covered bonds, during this reporting period" in column "Current period" (row 010, column 010) is "Use of the exemptions in articles 7 and 16 of the Order, or use of the exemption in article 6(3)(a) to buy covered bonds" and "Programme name" (column 010), "Amount of exposures" (column 020), "Programme prospectus URL" (column 030) and "Type of exposure" (column 040) in Part 2: Programme information (SR808.04.08.02) is reported.

The headline gives only the template and the kind of check, because the rule is too long to say in a headline. The plain words above say all of it.

What to do if your return fails it

  1. 01Open the tables below and find the cells the rule reads.
  2. 02Report these values together, or leave them all out.
  3. 03This is a blocking check. A return that fails it is normally rejected, so fix it before you submit.

The cells it reads

Part 1: Overview (SR808.04.08.01)

Row

  • R010There has been no use of the exemptions in articles 7 and 16 of the Order, and no use of the exemption in article 6(3)(a) to buy covered bonds, during this reporting period

Column

  • C010Current period

Part 2: Programme information (SR808.04.08.02)

Columns

  • C010Programme name
  • C020Amount of exposures
  • C030Programme prospectus URL
  • C040Type of exposure

Which returns it applies to

It is an active check of the Bank's for the excluded activities and prohibitions (RFB008) return on Bank of England banking taxonomy 4.1.1. Line4 Check does not run it yet, for the reason above. The Bank of England applies it to excluded activities and prohibitions (RFB008) returns, as a blocking check.

The Bank’s own words and formula

The plain words above spell out the Bank’s formula, with each cell named from its templates. In the Bank of England’s list of validations, word for word:

boe_b1142_m: T1: SR808.04.08.01; T2: SR808.04.08.02; Expression: ({SR808.04.08.01, r010, c010} = [boe_SR:x6019] and empty({SR808.04.08.02, c010-040})) or ({SR808.04.08.01, r010, c010} = [boe_SR:x6020] and not(empty({SR808.04.08.02, c010-040})))
Show the formulaShow

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

({t: SR808.04.08.01, r: 010, c: 010} = [boe_SR:x6019] and isNull({t: SR808.04.08.02, c: 010; 020; 030; 040})) or ({t: SR808.04.08.01, r: 010, c: 010} = [boe_SR:x6020] and not(isNull({t: SR808.04.08.02, c: 010; 020; 030; 040})))

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.