An Act to implement the Protocol on the Accession of the United Kingdom of Great Britain and Northern Ireland to the Comprehensive and Progressive Agreement for Trans-Pacific Partnership

How it changed on the way

56% of the text as introduced was changed or removed by the time it became law (4,499 words introduced, 3,940 passed). A committee amended it.

substantial changeintent mostly kept

The bill kept its core purpose of updating definitions and amending acts to implement the UK’s CPTPP accession but added a mandatory three-year parliamentary review and two detailed schedules listing countries and tariff codes. Over half the introduced text was altered through replacements in financial acts and new implementation provisions.

• Added a requirement for House of Commons committee review of the UK accession every three years.

  After: “Review of Accession of United Kingdom Review by committee 13.1 (1) Three years after the coming into force of this Act, and at the end of every three-year period after that, a comprehensive review of the accession of the United Kingdom to the Agreement and of the provisions and operation of this Act, including the effect of those provisions, must be undertaken by a committee of the House of Commons that is designated or established by the House for that purpose.”

• Replaced the power to amend Schedule IV with a fixed list of countries and territories.

  Before: “14.11 For the purpose of implementing Canada's international trade obligations, the Governor in Council may, by order, amend Schedule IV by adding or deleting the name of a trade agreement.”

  After: “14.11 For the purpose of implementing Canada's international trade obligations, the Governor in Council may, by order, amend Schedule IV by adding, deleting or amending any item.”

• Added Schedule 1 listing specific countries and territories for regulated foreign entities, excluding the UK under the new protocol.

  After: “SCHEDULE 1 (Section 11 ) SCHEDULE IV (Sections 2 and 14.11 and subsections 239(3.1), 251(3), 597(2.1), 816(1.1) and 828(3)) Column 1 Item Country or Territory 1 Any country or territory in which the Free Trade Agreement between Canada and the Republic of Chile, done at Santiago on December 5, 1996, applies”

• Added Schedule 2 listing specific tariff items subject to the new UK tariff provisions.

  After: “SCHEDULE 2 (Paragraphs 18 (c) and (d)) 0105.11.22 0402.91.20 1602.31.13 9938.00.00 0105.94.92 0402.99.20 1602.31.14 9987.00.00”

How precisely it is written

mostly preciseChallenging the law: HardDisputing a charge: Hard

The bill sets exact numerical rules for tariff reductions, rounding, and staging dates tied to the UK accession. It also creates several order-making powers that let the Governor in Council change schedules and extend tariff benefits.

Open to argument

• “the Governor in Council may, by order, amend Schedule IV by adding, deleting or amending any item”

  Broad power to alter the list of countries without statutory criteria.

• “may exempt goods from the conditions set out in subsection 24(1) and prescribe any conditions that apply”

  Open-ended discretion to rewrite conditions by order.

Clear-cut

• “If a reduction under subsection (3) or (4) results in a specific rate of customs duty that includes a fraction of one hundredth of a cent, the rate shall be rounded down to the nearest one hundredth of a cent”

  Objective arithmetic test with no discretion.

• “effective on January 1, 2026, to two elevenths of the initial rate”

  Fixed fractions and calendar dates leave no interpretive room.

• “if "X78" is set out, the initial rate, reduced, (i) effective on the first day on which the Comprehensive and Progressive Trans-Pacific Partnership Agreement is in effect between Canada and the United Kingdom, to three elevenths of the initial rate”

  Clear trigger and exact reduction steps.

Discretion. The Governor in Council, on the Minister’s recommendation, can add countries to Schedule IV, extend CPUKT entitlement to any originating goods, and set or waive conditions by order, sometimes with retroactive effect.

Challenging the law itself. No obvious vagueness or overbreadth that would engage section 7 or 2(b) Charter rights; the rules are technical trade measures.

Disputing a charge under it. Tariff classification and rate calculations rest on objective lists, fractions, and published staging dates that leave little room for factual dispute.

Read by a language model from the royal assent text; every quoted phrase appears in the bill. A reading of the drafting, not legal advice.