Which BSI standard covers emergency management (business continuity)?

BSI 100-4 — Notfallmanagement (emergency management) — it kept its old 100-series number when the others moved to 200-x.

When the BSI modernized its standards, three of them were re-issued as the 200 series:

• 100-1 → 200-1 (ISMS)
• 100-2 → 200-2 (methodology)
• 100-3 → 200-3 (risk analysis)

100-4 (emergency management) initially remained under its old number — a classic exam trap when people assume "everything is 200-x now". Its successor (BSI 200-4, Business Continuity Management) was developed later.

Tip: Remember "three moved, the fourth stayed behind."

Go deeper:

• BSI-Standards (Übersicht inkl. 200-4 BCM) — Zeigt 200-4 (Business Continuity Management) neben 200-1/-2/-3.