A more thorough explanation:

The bulletin des lois is a publication in French law that officially announces the text and effective date of a law or decree.

For example, if the French government passes a new law, the bulletin des lois will publish the full text of the law and the date it goes into effect. This publication is important because it ensures that everyone is aware of the new law and can comply with it.

Another example is if the French president issues a decree, the bulletin des lois will publish the full text of the decree and the date it becomes effective. This publication is important because it ensures that everyone is aware of the new decree and can follow it.

These examples illustrate how the bulletin des lois is a crucial publication in French law that provides official notice of new laws and decrees.