What “effective date” means and why it is often missing

Teams lose time, and sometimes money, by treating the date on a listing page as the date a rule starts. Three dates matter and they are often not the same.

The three dates

• Issue date: the date printed on the instrument, next to the signature. This is what regulator listing pages usually show.
• Publication date: the date the instrument appears in the Bangladesh Gazette, or on the regulator's website. For SROs the Gazette is the formal publication; the website copy may appear earlier or later.
• Effective date: the date from which the rule applies. It may be stated explicitly ("shall come into force on 1 July 2026"), tied to publication ("from the date of publication in the official Gazette"), or simply absent, in which case the default rules of the parent Act and the General Clauses Act apply and your adviser should confirm.

Why it is often missing

Many SROs say nothing about commencement because the drafter relies on the default. Budget SROs usually state 1 July. Mid-year amendments frequently say "with immediate effect" or nothing. Circulars from Bangladesh Bank often give a date by which banks must comply rather than a date the rule starts.

A cautionary example

In January 2025 an ordinance raised VAT and supplementary duty on a long list of goods and services; within two weeks NBR issued four notifications rolling several of those increases back. A team that updated prices or ERP tax codes on the first date had to redo the work on the second. Knowing which instrument is in force today, since when, is the whole problem.

How RuleScan AI handles it

• We store publication date and effective date as separate fields, each with a confidence: stated (quoted from the document), inferred (for example from the listing) or unknown.
• A rule-based extractor looks for commencement sentences and quotes the one it found with a page anchor. If it finds nothing, the field stays unknown. We never fill it with the issue date.
• Alerts for "effective soon" fire only on stated dates.

If you remember one thing: an empty effective-date field is information too. It tells you to open the document and decide, or to ask.