Operational Bulletin

InternationalOB

Description

ITU Operational Bulletin — a cross-bureau periodic publication covering regulatory and administrative information from all three ITU sectors.

Operational BulletinITU OB No. [Number] ([Month]/[Year])

Without dateITU OB No. [Number]

ITU OB No. 1283 (01/2024)

ITU OB No. 1000

ITU Operational Bulletin identifiers are composed of these elements:

Enumeration

ITU sector: R (Radiocommunication), T (Standardization), D (Development)

R (Radiocommunication)T (Standardization)D (Development)

Required. After hyphen following ITU.

e.g.T

:sector

Enumeration

The series letter (e.g., G, E, H, SA)

GEHIJLMN +9 more

Required. Follows sector, separated by dot.

e.g.G

:series

String

The recommendation number

Series-specific. Often includes dot-separated sub-numbers.

e.g.992.1

Publication year

Optional. Preceded by hyphen.

e.g.2019

Relations that can involve Operational Bulletin identifiers:

Relation	Description	Syntax	Example
Amendment	Modifies a Recommendation	`ITU-[Sector] [Series].[Number]/Amd [N]`	`ITU-T G.992.1/Amd 1`
Corrigendum	Corrects errors	`ITU-[Sector] [Series].[Number]/Cor [N]`	`ITU-T G.992.1/Cor 1`
Supplement	Additional content	`ITU-[Sector] [Series].[Number] Suppl [N]`	`ITU-T G.992.1 Suppl 1`