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

PRA110. Initial stock. Significant Currencies: every value in the cells it covers must be zero or more (CL66.02.01.02, Bank of England check boe_b2032_s)

A warning on the PRA110. Initial stock. Significant Currencies template (CL66.02.01.02), in the liquidity pillar II (PRA110) return.

Line4 Check does not run it on the liquidity pillar II (PRA110) return. On items no template of the return has. It reads only concepts or members that none of the return’s templates has, so it can never apply to it.

Check your PRA110 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 PRA110. Initial stock. Significant Currencies (CL66.02.01.02): every value in the cells it covers must be zero or more.

What to do if your return fails it

  1. 01Open the table below and find the cells the rule reads.
  2. 02Look for a value below zero in these cells, such as an amount entered as a negative number.
  3. 03This is a warning. It does not stop the return on its own, but your supervisor may ask you to explain it.

The cells it reads

PRA110. Initial stock. Significant Currencies (CL66.02.01.02)

Rows

  • R730Coins and bank notes
  • R740Withdrawable central bank reserves
  • R750Level 1 tradable assets
  • R760Level 1 excluding covered bonds
  • R770Level 1 central bank
  • R780Level 1 (CQS 1)
  • R790Level 1 (CQS2, CQS3)
  • R800Level 1 (CQS4+)
  • R810Level 1 covered bonds (CQS1)
  • R820Level 2A tradable assets
  • R830Level 2A corporate bonds (CQS1)
  • R840Level 2A covered bonds (CQS 1, CQS2)
  • R850Level 2A public sector (CQS1, CQS2)
  • R860Level 2B tradable assets
  • R870Level 2B ABS (CQS1)
  • R880Level 2B covered bonds (CQS1-6)
  • R890Level 2B corporate bonds (CQS1-3)
  • R900Level 2B shares
  • R910Level 2B public sector (CQS 3-5)
  • R920Other tradable assets
  • R930Central government (CQS1)
  • R940Central government (CQS 2 & 3)
  • R950Shares
  • R960covered bonds
  • R970ABS
  • R980Other tradable assets
  • R990Non tradable assets eligible for central banks
  • R1000Undrawn committed facilities received
  • R1010Level 1 facilities
  • R1020Level 2B restricted use facilities
  • R1030Level 2B IPS facilities
  • R1040Other facilities
  • R1050from intragroup counterparties
  • R1060from other counterparties
  • R1080Cumulated Counterbalancing Capacity
  • R1230HQLA central bank eligible
  • R1240non-HQLA central bank eligible
  • R6490Level 2A assets included due to Alternative Liquidity Approaches
  • R6500Deposits by / Liquidity funding available to network member with/from central institution
  • R6510Of which: reported as LCR inflows from undrawn credit or liquidity facilities provided by members of a group or an institutional protection scheme where the competent authorities have granted permission to apply a higher inflow rate

And 37 more.

Column

  • C010Initial stock

Which returns it applies to

It is an active check of the Bank's for the liquidity pillar II (PRA110) 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 liquidity pillar II (PRA110) returns, as a warning.

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_b2032_s]; [CL66.02.01.02 ]; [scope({t:CL66.02.01.02,y:1000;1010;1020;1030;1040;1050;1060;1080;1230;1240;6490;6500;6510;6520;6650;6660;6670;6680;6690;6700;6710;6720;6730;6740;6750;6760;6770;6790;6880;6890;6900;6920;6930;6940;7150;7160;7170;7180;7190;7200;7210;7220;7230;730;740;750;7520;7540;7550;7560;7570;7580;7590;760;770;780;790;800;810;820;830;840;850;860;870;880;890;900;910;920;930;940;950;960;970;980;990,x:010})]; [{t:CL66.02.01.02} >= 0]
Show the formulaShow

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

{t: CL66.02.01.02} >= 0

Where it applies, in the Bank's words (its scope):

scope({t: CL66.02.01.02, r: 1000; 1010; 1020; 1030; 1040; 1050; 1060; 1080; 1230; 1240; 6490; 6500; 6510; 6520; 6650; 6660; 6670; 6680; 6690; 6700; 6710; 6720; 6730; 6740; 6750; 6760; 6770; 6790; 6880; 6890; 6900; 6920; 6930; 6940; 7150; 7160; 7170; 7180; 7190; 7200; 7210; 7220; 7230; 730; 740; 750; 7520; 7540; 7550; 7560; 7570; 7580; 7590; 760; 770; 780; 790; 800; 810; 820; 830; 840; 850; 860; 870; 880; 890; 900; 910; 920; 930; 940; 950; 960; 970; 980; 990, c: 010, seq: False, f: banking, fv: liquidity_pillarii})

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.