Article D1.4
Transitional provisions
Financial Regulations
Article D1.4
Transitional provisions
Chapter: ARTICLE D1: GENERAL PRINCIPLES
In Simple Terms
This rule explains how regulations apply when there's a change in the rules. If a reporting period (like a championship season) started under old rules, those old rules still apply to that period. However, any procedural changes (how things are done) apply immediately to everything, even stuff that started under the old rules.
- Substantive rules (the main rules) that were in effect when a reporting period started continue to apply to that period, even if new rules are introduced
- Procedural rules (how things are done) apply retroactively to all reporting periods unless explicitly stated otherwise
- This prevents mid-season rule changes from unfairly affecting teams that began competing under different regulations
Official FIA Text
Any Reporting Period that has commenced prior to the Effective Date shall be governed by the substantive rules in effect at the time such Reporting Period commenced. However, procedural rules shall apply retroactively unless specified otherwise.
transitional provisionsreporting periodeffective datesubstantive rulesprocedural rules
2026 Season Regulations