Bottom Edge Totals and Islands

The block under the table is placed by one question: does it sit inside the ruled frame, or visually continue the table's ruled column grid?

The block MUST NOT be omitted, and a block that is not part of the grid MUST NOT be padded into the main table as extra footer rows. This is the frame test of Titles Banners Captions (§9.7.3), applied at the other edge of the table. Footnotes are the one exception — see Footnotes Inside the Frame (§9.7.2).

Lines such as "Selected …" or "Reserve to Surplus Ratio:" whose values land under real columns are rows of the grid. They MUST be rendered as rows, each value in its printed column — not as prose after the table.

| Year | Reserves | Surplus |
| 2023 | 1,204    | 887     |
Selected             1,190     ← values align under real columns:
Reserve/Surplus:     1.36        rows of the table

A Subtotal / Discount / Shipping / Total block printed below the line-item table and outside its frame MUST be rendered as its own key-value table: label and value, one row per printed line.

This is a deliberate exception to the treatment of ungridded key-value regions in Forms and Key-Value Regions (§10.1). Trailing totals are a numeric continuation of the table's data, and a table whose totals are missing has lost the part of the page most people read first.

A small offset group of cells that lines up with a table's column tracks is content. It MUST be rendered; it is not decoration.

| (1) | (2) | (3)  |
| 100 | 82  | 0.82 |

            | 0.79 |   ← "(8) Benchmark" offset box, aligned
                         with column (3)'s track

Where it goes is decided by one test: does the island line up with an existing table's column tracks?

• Yes → it belongs to that table and MUST be appended as an extra row: the label in the stub column, the value in the column whose track it lines up with.
• No → it MUST be rendered as its own small table.

Column-track alignment is the typesetter saying "this value belongs under that heading". A floating box that lines up with nothing makes no such claim, so it stands alone.

Alignment places an island once it is known to belong to the table; it cannot by itself prove that an out-of-frame line is a footer row. On a premium-tax page an underline closes a Premium Tax / Total mini-table, and the 3. DCCE to Loss Ratio line printed beneath it sits under the same columns while belonging to neither table.

The frame test MUST be applied first, and alignment used only to place what it hands over — not the other way round.

Some pages have no ruled border either way. There, both encodings — footer rows of the table, or a separate key-value table — conform, provided every printed line is kept. A document MUST use one of them throughout. See Accepted Alternatives (§A.1) and Choices Made Once Per Document (§4.2).