An Act to amend the Canada Labour Code and the Canada Industrial Relations Board Regulations, 2012

How it changed on the way

46% of the text as introduced was changed or removed by the time it became law (3,922 words introduced, 3,004 passed). A committee amended it.

substantial changeintent mostly kept

The core prohibition on replacement workers was retained and broadened by dropping the intent-to-undermine test and listing extra categories whose services are barred. Procedural rules on agreements, Board timelines, reinstatement priority and new exceptions were added or rewritten during passage.

• Board decision deadline shortened from 90 to 82 days.

  Before: “no later than 90 days after the day on which it received the application or referral.”

  After: “no later than 82 days after the day on which it received the application or referral.”

• Reinstatement preference changed from persons used contrary to the ban to any other person.

  Before: “in preference to any person whose services were used contrary to subsection 94(4)”

  After: “in preference to any other person.”

• New list of persons whose services may not be used added after subsection 94(4).

  After: “(b) any contractor, other than a dependent contractor, or any employee of another employer; (c) any employee whose normal workplace is a workplace other than that at which the strike or lockout is taking place or who was transferred to the workplace at which the strike or lockout is taking place after the day on which notice to bargain collectively is given; (d) any volunteer, student or member of the public.”

• Coming-into-force clause added setting the date at twelve months after royal assent.

  After: “This Act comes into force on the day that, in the 12th month after the month in which it receives royal assent, has the same calendar number as the day on which it receives royal assent or, if that 12th month has no day with that number, the last day of that 12th month.”

How precisely it is written

mixedChallenging the law: ModerateDisputing a charge: Moderate

The bill mixes exact numbers, fixed time limits and enumerated lists with repeated reliance on opinions, reasonable expectations and Board discretion. This creates clear rules in some places but leaves key boundaries open to argument in others.

Open to argument

• “in the opinion of the employer and the trade union”

  Subjective standard that turns on what the parties think rather than an objective test.

• “the Board considers appropriate for the purpose of expediting proceedings or preventing an abuse of process”

  Broad discretionary power defined by the Board's own view of appropriateness.

• “could reasonably be expected to present an imminent or serious”

  Forward-looking and evaluative language that invites debate over likelihood and seriousness.

• “as soon as feasible”

  Undefined feasibility standard that depends on circumstances and judgment.

Clear-cut

• “a fine not exceeding $100,000 for each day during which the offence is committed or continued”

  Fixed maximum daily penalty stated in dollars with no range or discretion.

• “no later than 82 days after the day on which it received the application or referral”

  Hard calendar deadline that does not depend on opinions or circumstances.

• “any employee or any person who performs management functions or who is employed in a confidential capacity in matters related to industrial relations, if that employee or person is hired after the day on which notice to bargain collectively is given”

  Specific categories and a clear temporal trigger.

Discretion. The Board receives wide power to make any order it considers appropriate, to set time limits by regulation, and to decide applications under open-ended criteria; the Governor in Council may also create an administrative monetary penalties scheme by regulation.

Challenging the law itself. Phrases such as 'considers appropriate' and 'reasonably be expected' could support a vagueness or overbreadth argument under section 2(d) of the Charter.

Disputing a charge under it. An accused employer can point to the 'opinion' language, the multi-part exception in subsection (7), and the 'for greater certainty' clauses to dispute whether the prohibition was triggered.

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.