---
title: Official Documentation
description: Cospas-Sarsat system documentation and specifications
---

import { Card, CardGrid, LinkCard } from '@astrojs/starlight/components';

This section contains **74 reference documents** from the official **Cospas-Sarsat** documentation, organized by series.

<CardGrid>
  <LinkCard
    title="T-Series (Technical)"
    description="22 documents: Beacon specs, LUT standards, MEOLUT requirements"
    href="/cospas-sarsat/t-series/"
  />
  <LinkCard
    title="R-Series (Reports)"
    description="19 documents: System status, performance analyses, annual reviews"
    href="/cospas-sarsat/r-series/"
  />
  <LinkCard
    title="P-Series (Programme)"
    description="15 documents: International agreements, operational plans"
    href="/cospas-sarsat/p-series/"
  />
  <LinkCard
    title="G-Series (General)"
    description="6 documents: System overview in EN/FR/RU"
    href="/cospas-sarsat/g-series/"
  />
  <LinkCard
    title="S-Series (Secretariat)"
    description="5 documents: Beacon registration procedures"
    href="/cospas-sarsat/s-series/"
  />
  <LinkCard
    title="A-Series (Operational)"
    description="5 documents: Alert distribution, SPOC protocols"
    href="/cospas-sarsat/a-series/"
  />
  <LinkCard
    title="D-Series (IBRD)"
    description="2 documents: Beacon registration database standards"
    href="/cospas-sarsat/d-series/"
  />
</CardGrid>

## Key Documents

| Document | Description |
|----------|-------------|
| **T.001** | 406 MHz Beacon Specification (the primary technical spec) |
| **T.007** | MEOLUT Performance Specification |
| **T.018** | Type Approval Standard |
| **A.001** | Alert Distribution Procedures |
| **G.003** | Introduction to the System |

---

*Documentation sourced from [cospas-sarsat.int](https://www.cospas-sarsat.int/en/documents-pro/system-documents)*