> ## Documentation Index
> Fetch the complete documentation index at: https://docs.law4devs.eu/llms.txt
> Use this file to discover all available pages before exploring further.

# Critical Entities Resilience Directive (CER)

> Directive (EU) 2022/2557 on the Resilience of Critical Entities.

## Overview

| Field        | Value                                                                                          |
| ------------ | ---------------------------------------------------------------------------------------------- |
| **CELEX**    | 32022L2557                                                                                     |
| **Status**   | Active                                                                                         |
| **Articles** | 29                                                                                             |
| **Recitals** | 45                                                                                             |
| **EUR-Lex**  | [View Official Text](https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:32022L2557) |

## Compliance Deadlines

| Date       | Type             | Description                          |
| ---------- | ---------------- | ------------------------------------ |
| 2022-12-27 | Entry into force | Directive enters into force          |
| 2024-10-17 | Transposition    | Member States transposition deadline |

## Stakeholder Roles

The CER Directive defines obligations for the following stakeholder roles:

* **manufacturer** - Providers of security solutions for critical entities
* **importer** - Entities bringing security services into the EU
* **distributor** - Service providers supporting critical infrastructure
* **authorized\_representative** - EU representatives for non-EU providers
* **notified\_body** - Bodies for resilience assessment
* **market\_surveillance** - National competent authorities
* **consumer** - Recipients of essential services

## Requirement Types

Requirements in CER are classified as:

* **obligation** - Mandatory resilience and risk assessment requirements
* **prohibition** - Restricted practices affecting critical infrastructure
* **right** - Rights of critical entities and service recipients
* **procedure** - Incident notification and reporting procedures
* **general** - General provisions and definitions

## API Usage

```bash theme={null}
# Get all CER articles
curl https://api.law4devs.eu/v1/frameworks/cer/articles

# Get CER framework details
curl https://api.law4devs.eu/v1/frameworks/cer

# Get CER requirements
curl https://api.law4devs.eu/v1/frameworks/cer/requirements

# Get CER recitals
curl https://api.law4devs.eu/v1/frameworks/cer/recitals
```

```python theme={null}
# Python SDK
from law4devs import Law4Devs

client = Law4Devs(api_key="your-api-key")

# List all CER articles
articles = client.articles.list("cer")

# Get CER requirements by stakeholder role
requirements = client.requirements.list("cer", role="manufacturer")

# Search CER articles by tag
articles = client.articles.search("cer", query="critical infrastructure")
```

```typescript theme={null}
// TypeScript SDK
import { Law4Devs } from '@law4devs/sdk';

const client = new Law4Devs({ apiKey: 'your-api-key' });

// List all CER articles
const articles = await client.articles.list('cer');

// Get CER requirements by stakeholder role
const requirements = await client.requirements.list('cer', { role: 'manufacturer' });
```

## Key Topics

* Critical entity identification and designation
* Risk assessment and resilience measures
* Physical and digital security requirements
* Incident notification obligations
* Cross-border cooperation and information exchange
* Supervision and enforcement mechanisms
* Relationship with NIS2 Directive (sister legislation)