Alerting regulations (NBB)
Alerteerregeling Nederlandse Bridge Bond
Issued byNBBNederlandse Bridge Bond
EditionSeptember 2009
In force fromSeptember 2009
StatusIn force
LanguageDutch
The Dutch alerting rule, unchanged since September 2009, with an official explanatory note. The main rule: alert any bid the opponents might understand differently without a warning, which depends partly on the opponents’ level. The opponents may forbid alerting for the rest of the round.
Alerting at a glance
- Basic rule
- Alert any bid the opponents might understand differently without a warning. What needs an alert partly depends on the opponents' level.
- How to alert
- Partner shows the alert card; with no bidding box, knock on the table.
- Doubles
- Not alerted unless the main rule applies.
- Pre-alerts
- Point out special agreements before each round and hand over two completed system cards.
- Good to know
- The opponents may forbid alerting for the rest of the round — the pair that forbids must still alert.
More from Nederlandse Bridge Bond
| Document | Issued by | Edition | Official text |
|---|---|---|---|
| Laws of Duplicate Bridge 2017 — Dutch translationSpelregels voor wedstrijdbridge 2017 | NBB | 2017, with Laws 73 and 89 amended March 2024 | Web ↗ |
| Competition regulations (NBB)Wedstrijdreglement | NBB | 1 September 2025 | Web ↗ |
The world standard
| Document | Issued by | Edition | Official text |
|---|---|---|---|
| WBF Alerting Policy | WBF | Revised August 2022 | PDF ↗ |
This page is a summary written by Bridge Timer. The official text published by Nederlandse Bridge Bond is the only authoritative version.
← All rules & docsLink checked 2026-10-01 · source: Nederlandse Bridge Bond