> For the complete documentation index, see [llms.txt](https://www.mica.wtf/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.mica.wtf/mica.wtf/mifid-ii/title-ii-authorisation-and-operating-conditions-for-investment-firms-art.-5-43/21.md).

# Art. 21 — Regular review of conditions for initial authorisation

1. Member States shall require that an [investment firm](https://headlesslaw.com/definitions/mifid-ii/investment-firm/) authorised in their territory comply at all times with the conditions for initial authorisation established in Chapter I.
2. Member States shall require competent authorities to establish the appropriate methods to monitor that investment firms comply with their obligation under paragraph 1. They shall require investment firms to notify the competent authorities of any material changes to the conditions for initial authorisation.

   ESMA may develop guidelines regarding the monitoring methods referred to in this paragraph.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://www.mica.wtf/mica.wtf/mifid-ii/title-ii-authorisation-and-operating-conditions-for-investment-firms-art.-5-43/21.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.