Line4

1 min readBlockingBank of England taxonomy 2.2.0Updated 11 November 2026

Non-life outwards reinsurance contract information: the format of a code or text (IR.30.03, Bank of England rule IR_bv3009)

A blocking check on the non-life outwards reinsurance contract information template (IR.30.03), in the annual solo (ARS) and annual third-country branch (ARB) returns.

Check your file for this ruleWhat to do if it fails

The rule in plain words

Report each line of business using its number (e.g. 1 for Medical expenses insurance). If reporting multiple lines, list the numbers in ascending order, separated by commas (e.g. 1, 2)

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 table below and find the cells the rule reads.
  2. 02Compare the code or text in your return with the format the rule sets out, character by character, including any prefix and any spaces.
  3. 03It runs only when your filing indicators mark IR.30.03 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

Non-life outwards reinsurance contract information (IR.30.03.01.01)

Column

  • C0070Line of business

Which returns it applies to

Line4 Check runs it on annual solo (ARS) and annual third-country branch (ARB) returns on Bank of England taxonomy 2.2.0. The Bank of England applies it to annual third-country branch (ARB) and annual solo (ARS) returns, as a blocking check.

The Bank’s own words and formula

The plain words above are the Bank of England’s own, word for word, from its list of validations.

Show the formulaShow

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

matches({t: IR.30.03.01.01, c: C0070, z: Z0001}, "^((1$|1,){0,1}(2$|2,){0,1}(3$|3,){0,1}(4$|4,){0,1}(5$|5,){0,1}(6$|6,){0,1}(7$|7,){0,1}(8$|8,){0,1}(9$|9,){0,1}(10$|10,){0,1}(11$|11,){0,1}(12$|12,){0,1}(13$|13,){0,1}(14$|14,){0,1}(15$|15,){0,1}(16$|16,){0,1}(17$|17,){0,1}(18$|18,){0,1}(19$|19,){0,1}(20$|20,){0,1}(21$|21,){0,1}(22$|22,){0,1}(23$|23,){0,1}(24$|24,){0,1}(25$|25,){0,1}(26$|26,){0,1}(27$|27,){0,1}(28$|28,){0,1}(33$|33,){0,1}(34$|34,){0,1}(37$){0,1})$")

Every Solvency UK rule on IR.30.03

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.